Message from Our CEO
About Trex
2020 Highlights
Material Topics
Environment
People
Governance
SASB Index
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Trex | 2020 ESG Report
1
Building a Better 
Tomorrow Together
2020 Environmental, Social and Governance Report

Trex | 2020 ESG Report
1
Message from Our CEO
About Trex
2020 Highlights
Material Topics
Environment
People
Governance
SASB Index
About This Report
2
Message from Our 
President and CEO 
4
About Trex 
9
2020 Highlights 
16
Material Topics 
18
Environment
19
Products Born from Sustainable 
Innovation
22
Upcycling Our Raw Materials 
26
Product Lifecycle Impacts
30
Environmental Stewardship in 
Our Manufacturing
36
People
37
Health and Safety
42
Diversity and Inclusion
45
Fair and Equitable Pay 
47
Training and Professional 
Development
51
Social Impact in Our 
Communities
55
Governance
56
Corporate Governance
59
Sustainability Governance
61
Ethics
62
SASB Index
65
About This Report
Table of Contents

Message from Our CEO
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Message from Our 
President and CEO
Operating for the good of our employees, communities 
and planet has always been central to Trex’s heritage. 
In 2020 — a year of historic challenges on so many 
fronts — teams across Trex worked tirelessly to continue 
advancing the company’s environmental, social and 
governance (ESG) objectives.
As proud as I am of our employees’ outstanding 
accomplishments in 2020, I am equally proud of our 
consistent and sustainable financial performance, which 
resulted in one of our most successful years to date. And 
I’m pleased to share the results of our collective efforts in 
this, Trex’s third annual ESG report. 
Environmental sustainability is at the core of our 
products and operations
We strengthened our long-term strategy to convert 
consumers from the use of wood products to eco-friendly 
Trex composite decking, which is made from 95% recycled 
and reclaimed materials. Our manufacturing process 
upcycles these materials by transforming them into higher-
value products. In 2020, we upcycled more than 900 
million pounds of plastic film and reclaimed wood, most of 
which would otherwise be destined for landfills. 
We made further strides in minimizing the environmental 
impact of Trex operations even as our company grew. 
Nearly all of our factory scrapped boards are recycled 
back into the manufacturing process and used to 
make new products. Additionally, our ongoing efforts 
to improve energy efficiency in our plants helped 
reduce the company’s energy use related to cooling by 
approximately 40% in 2020.
We were honored to receive the 2020 Sustainability 
Leadership Award from Business Intelligence Group 
in recognition of our commitment to environmentally 
responsible manufacturing, as well as our commercial and 
community recycling programs. Consumers also continue 
to recognize the company’s sustainability benefits, with 
Green Builder readers in North America voting Trex the 
“greenest decking” for the 11th straight year in 2021. 
Amid the pandemic, we immediately prioritized our 
employees’ health and well-being
Our Crisis Management Team developed a COVID-19 
pandemic response plan that incorporated guidance and 
requirements from health authorities to continue our 
essential manufacturing operations under safe conditions.

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We supported our workers in manufacturing 
and office-based roles with revised safe working 
arrangements. And, we provided flexible time for 
all employees affected by the COVID-19 pandemic 
— whether to recover from the virus, safely 
quarantine, look after a family member or 
to manage childcare.
Our team’s creativity and dedication are 
powering rapid expansion
Despite the headwinds of the COVID-19 pandemic, 
we completed a $200 million multi-year expansion 
program in the first half of 2021 that increased 
Trex production capacity by 70% when compared 
to 2019 levels. This is good news not just for our 
customers and business but also for our recycling 
efforts. As Trex continues to grow, we will upcycle 
more reclaimed wood and polyethylene waste — 
resulting in more plastic film being diverted from 
landfills and further reducing its environmental 
impact — while providing customers with 
sustainable outdoor living options.
We foster a culture that upholds the values 
of diversity, equity and inclusion
We’re mindful of the need for all Trex employees 
to feel respected and empowered to perform at 
their best. In 2020, we focused on identifying 
unconscious bias in Trex’s hiring practices and on 
reimagining our recruitment advertising to reflect 
broader ethnic and gender diversity. We reviewed 
our compensation practices and were pleased to 
find no gender pay gap. We will continue along 
this path by conducting additional pay equity 
studies across all protected categories in 2021.
To further ingrain these values throughout the 
Trex culture, we launched our first-ever diversity 
and inclusion training initiative with virtual and 
in-person sessions during the second half of 2020. 
The training has been well-received by employees 
and will be ongoing.
We continue to support the communities 
where we work
Our company’s growth and success depend on 
a strong foundation of local support. We nurture 
those roots by giving back through community-
based organizations and programs. In 2020, Trex 
and our employees collectively invested around 
$512,000 in local communities. For example, 
we matched employee donations to United 
Way and gave more than $211,000 in 2020, 
including a special donation to support United 
Way’s COVID-19 pandemic relief efforts. We also 
contributed $120,000 from our deck sample sales 
to support Feeding America in 2020. 
We are building a better tomorrow together
Although 2020 was unprecedented in many ways, 
it was also an excellent testimony to the stability 
at Trex that flows from our consistent strategy 
and our ongoing commitment to succession 
planning. This facilitated a seamless leadership 
transition that included my election by the Board 
to the CEO role, and it will foster the company’s 
continued growth and success. I congratulate and 
thank our 1,700-plus employees — which includes 
approximately 350 people who joined us in 2020 
— along with our extended family of shareholders, 
retailers, dealers, contractors and distributors. 
Together, they enabled Trex to deliver exceptional 
results in a challenging year.
The integrity of our business strategy and the 
strength of our ESG commitment have positioned 
us for lasting success. We began 2021 firmly 
committed to our environmentally responsible 
heritage as we continue to grow, innovate and 
reach new frontiers.
Sincerely,
Bryan Fairbanks 
President and Chief Executive Officer

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About Trex

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About Trex 
Trex Company, Inc. is the world’s largest manufacturer of wood-alternative decking and railing. As a leader in high-performance, low-maintenance outdoor living 
products for nearly 30 years, we meld innovation, environmental responsibility and beauty.
Our Vision
•	To enhance the lives of people by engineering 
what’s next in outdoor living
Our Mission
•	Design and market high-performance outdoor 
living products that offer superior aesthetics 
and quality
•	Maximize opportunities that leverage our 
manufacturing extrusion expertise and are tied 
to our recycling heritage
•	Achieve this through human talent, world-
class manufacturing innovation and our 
preeminent brand
Our Core Values 
•	Do the right thing with integrity and respect
•	Ambition creates opportunity
•	Be accountable for your actions
•	Take pride in accomplishments
•	Determined to be the best
•	Win through teamwork
•	Passion drives results
•	Bias towards action
•	Authenticity builds trust

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Business Overview 
Trex Company, Inc. is the world’s No. 1 brand of wood-alternative decking. We are the leader in high-
performance, low-maintenance, eco-friendly outdoor living products for the residential market and a 
leading provider of custom-engineered commercial railing systems. Our company is headquartered in 
Virginia, and also has operations in Nevada and Minnesota.
We seek to achieve sales growth by continually expanding and enhancing our product platform, 
developing and promoting Trex as the premium outdoor living brand, and providing innovative 
solutions to the commercial railing market.
Trex Residential Products offers a comprehensive set of aesthetically pleasing, low-maintenance, eco-
friendly outdoor living products. These include decking, railing, fencing and energy-efficient outdoor 
lighting for use in replacement and remodeling as well as new construction. Our decking combines 
the look of real wood with superior durability. It is composed of an innovative blend of 95% recycled 
polyethylene film and reclaimed wood, maximizing the sustainability credentials of our decking.
As an environmentally responsible outdoor living products leader for nearly 30 years, we make our 
products available in more than 6,700 retail locations worldwide under the brand name Trex®.
Trex Commercial Products is a leading national provider of custom-engineered railing systems for the 
commercial and multi-family market, including sports stadiums and performing arts venues. We have a 
dominant share of the market for railings used in newly built professional stadiums in North America.
Amid one of the most challenging business environments in recent history, our company achieved 
record growth in 2020 and further strengthened its position as the industry leader in composite 
decking. We successfully navigated through the COVID-19 pandemic — and the resulting rapid 
changes required — without interruption to our operations. We made the safety of all our employees 
and their families paramount. The remarkable business resiliency we experienced during these 
difficult circumstances is thanks to the flexibility and commitment of Trex employees.
Sustainability 
Leadership Award    
Trex received this 2020 award from 
the Business Intelligence Group in 
recognition of our ongoing commitment 
to sustainability demonstrated through 
our manufacturing process, commercial 
and community recycling programs, and 
progress to reduce the environmental 
impact of our business.
FORTUNE: Fastest-Growing 
Companies Worldwide
Trex was named to FORTUNE Magazine’s 
2020 list of the 100 fastest-growing 
companies worldwide. Ranked 57th, we 
are the highest-ranked building materials 
manufacturer on the list.
Forbes: America’s Best 
Mid-Size Companies
Forbes Magazine ranked Trex 12th 
overall on its 2021 list of America’s Best 
Mid-Size Companies.
©2020 Fortune Media IP Limited. All rights reserved. Used under license. Fortune 
and Fortune Media IP Limited are not affiliated with, and do not endorse the 
products or services of, Trex Company, Inc.

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$1.51
Diluted EPS
$173M
Capital expenditures
884,018
Shares of common stock repurchased
2020: Financial 
Performance Highlights
$881M
Net sales
$59M
Income tax expense 
$176M
Net income
$187M
Cash provided by operating activities
$252M
EBITDA1
28.6%
EBITDA margin1
1 Earnings Before Interest, Income Taxes, Depreciation and Amortization (EBITDA) and EBITDA margin are considered non-GAAP measures. A reconciliation of EBITDA to net income and EBITDA margin to net income as 
a percentage of net income can be found in our earnings press release issued on February 22, 2021 for the year ended December 31, 2020.

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Strategic Initiatives 
Winning More Business
With growth across all our residential product lines in 2020, we continue to 
focus on accelerating gains in our market share against wood (our largest 
competitor) through greater awareness of our benefits: quality, longevity and 
sustainability. Over the past year, we converted an estimated 2% of the decking 
market — worth about $100 million — and see further opportunity to expand. 
Our consolidated net sales grew 18% to $881 million for the year, including a 39% 
increase in sales in the fourth quarter alone. 
Growing Our Operations Sustainably 
As our company grows, we uphold our commitment to sustainability by applying 
the best available technologies and practices in our operations. This includes 
ongoing innovation in our manufacturing operations to manage any adverse 
impacts on air, water and land. In the second quarter of 2021, we completed 
our $200 million, multi-year capital expansion program to fulfill rising demand 
for Trex outdoor living products and keep pace with projected future growth. 
Production at a new, approximately 200,000-square-foot facility at our Virginia 
site started in January 2021, and we added new production lines at our Nevada 
site during 2020. Along with adding approximately 350 new jobs, our expansion 
will increase production capacity for our residential products by at least 70%. 
This capacity increase will also enable us to divert even higher volumes of 
recycled plastic and reclaimed wood for use in our products.

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2020 Highlights

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Our impact in 2020...
At Trex, we create outdoor living products that are beautiful, durable, 
low maintenance, high performance and sustainable, and promote design 
innovation for the commercial railing market. We aim to operate our 
business with the highest standards of integrity and to make a positive 
difference in the communities where we operate. We achieve these 
objectives through the talent, innovation and hard work of our employees 
along with thousands of retail partners, dealers and distributors.

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...on our environment
362 million
pounds of polyethylene film diverted from 
landfills in 2020
547 million
pounds of reclaimed wood used in our 
products in 2020
~99%
water recycled annually by closed-loop 
recirculation systems at our Virginia and 
Nevada manufacturing facilities

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...on our people
1,700+
Trex full-time employees 
22,000+
person hours of leadership, onboarding and 
professional development training 
100%
reimbursement of permanent full-time 
employees’ tuition for continuing education 
courses related to our business

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...on our community
$512,000
total value of our community investment in 2020 
— including corporate and employee cash and 
in-kind donations 
2,500+
schools and community groups participating in 
our recycling programs
3.5 million
pounds of plastic film waste diverted from 
landfills by our school and community group 
recycling programs since 2011

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...for responsible governance
8
independent directors on our 10-member Board
3
Board committees: Audit, Compensation, and 
Nominating/Corporate Governance
641,230
shares owned and held by Trex directors 
and officers, which is significantly higher than 
the required minimum under our Stock 
Ownership Guidelines

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2020 Sustainability Leadership Award
Business Intelligence Group honored Trex for 
our ongoing commitment to sustainability 
demonstrated through our manufacturing 
process, commercial and community recycling 
programs, and progress to reduce the 
environmental impact of our business. Key 
to earning this award is our highly effective 
NexTrex® Plastic Film Recycling Program, 
which makes it easy for retailers, distributors 
and consumers to responsibly dispose of 
unwanted plastic waste.
2020 and 2021 Builder Magazine 
Brand Use Study
For 14 consecutive years, Trex has earned the 
top spot across three key performance areas 
for the composite/PVC decking category: 
“brand familiarity,” “brand used the most” and 
“brand used in the past two years.” In 2020, 
our brand also received the “highest in overall 
quality” honors.
2020 and 2021 Green Builder 
Readers’ Choice Awards 
The magazine’s readers selected Trex as the 
“greenest decking,” receiving nearly three 
times as many votes as the closest competitor 
in 2020. In 2021, Trex was selected again for 
the 11th straight year. For the second straight 
year, we also received the best Brand Index 
score in the decking category, a new addition 
to the Green Builder program in 2020.
Leadership and Recognition 
We are honored that our environmental stewardship and product integrity are 
recognized year after year:

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Material Topics

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Material Topics
Trex assesses the materiality of environmental, social and 
governance (ESG) topics through our corporate governance 
process. We regularly review our assessments to ensure our 
sustainability work and reporting focus on the areas that are 
the most important to our business and our stakeholders. We 
last reviewed our material topics in 2020. 
To determine our priority topics, we evaluate against the 
Sustainability Accounting Standards Board (SASB) Building 
Products and Furnishings standard. In addition, we include 
topics of interest to other leading ESG ratings providers, 
including MSCI ESG Research, Sustainalytics and Institutional 
Shareholder Services (ISS). We then compare this range of 
potential material topics against the corporate priorities set 
by the Board and executive team, evaluating the risks and 
opportunities associated with each topic and their importance 
to our business’ bottom line.
This report outlines relevant business updates and considerations 
and includes our applicable corporate policies and positions.

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Environment

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Products Born from 
Sustainable Innovation
Since our founding in 1996, we have built sustainability into our products, 
from the inside out. Our starting point was to solve a long-lasting waste 
problem for society: what to do with the mountain of single-use plastic film 
packaging generated every day that is not being recycled?
It is estimated that each consumer in the United States disposes of 100 
pounds of single-use plastic packaging a year. This amounts to a total 
annual waste stream of about 32 billion pounds. Of this, only approximately 
12% is recycled and 16% burned for heat recovery, leaving more than 70% 
relegated to landfills.1 
The genius of Trex is our process for combining waste plastic film, bags and 
wraps with reclaimed wood to produce highly durable, low-maintenance 
decking materials that withstand harsh outdoor conditions for a warranted 
period of 25 years. Trex diverts from landfills and upcycles approximately 
362 million pounds of plastic film, bags and wraps each year, nearly all of 
which come from post-consumer sources.
This combination of waste and reclaimed raw materials, coupled with 
product longevity, make Trex one of the most sustainable decking materials. 
See Product Lifecycle Impacts for more information.
1 Source: McKinsey & Company.

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About Our Products
Trex decking is made from 95% recycled polyethylene plastic and reclaimed wood. 
Our proprietary manufacturing process is optimized to re-use factory waste and 
minimize emissions. 
Waste plastic 
film collected 
from retail and 
commercial users
Post-consumer 
plastic film, 
bags and wraps 
collected by 
communities 
and schools
Reclaimed wood 
from multiple 
sources
Plastic film cleaned 
and ground into 
granules
Plastic film and 
sawdust combined 
and heated
Mixture die formed 
into boards
Boards cooled, 
cut to length and 
quality inspected 
Finished boards 
packaged and 
shipped to 
customers
Wood ground 
into sawdust

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Innovating Through 
Lifecycle Assessment
Committed to understanding our 
environmental impact, we have conducted 
two lifecycle assessments (LCAs) of our 
flagship composite decking products. The 
first LCA occurred in 2016, to establish 
benchmarks and use as an input into 
decision-making around manufacturing 
expansion and process changes. Our 
second LCA in 2019 reflected investments 
made in our manufacturing plants and 
demonstrated a consequential reduction in 
our environmental footprint. 
The findings of our LCAs help us establish 
a roadmap based on science to inform 
decisions on changes to our manufacturing 
process or supply chain. We will continue 
to employ LCA studies to gauge our 
progress at relevant milestones and to guide 
decision-making as our company expands. 
Trex environmental benefits are recognized by 
the receipt of the Leadership in Energy and 
Environmental Design (LEED) certification 
by the United States Green Building Council. 
LEED is a point-based system that accredits 
building projects incorporating efficient and 
safe, eco-friendly products. Trex decking 
can add up to five points to a project — 
four points in the Materials and Resources 
category for being composed of 95% recycled 
and reclaimed materials, and one point in 
the Innovation and Design category. Our 
commercial railing products also typically 
contribute to LEED certification points in the 
Materials and Resources category based on 
recycled aluminum, steel, stainless steel and 
glass content. 
LEED-certified buildings (Silver, Gold or 
Platinum) can attract higher demand, 
premium rates and longer occupancy leases, 
thereby supporting continued and growing 
demand for products that can facilitate 
LEED designations.
Other Trex Products
Alongside Trex decking, our product 
range includes other outdoor construction 
materials such as railing and fencing. In 
addition to composite materials similar 
to our decking products, other materials 
used for Trex railings are aluminum and 
PVC. Aluminum achieves relatively high 
recycling rates due to the material’s value 
and suitability for returning it to the smelting 
process. Our aluminum railing contains 
approximately 40-50% recycled content.
Trex environmental benefits are recognized in LEED 
certification by the United States Green Building Council. 
LEED is a point-based system that accredits building projects 
incorporating efficient and safe, eco-friendly products.

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Upcycling Our 
Raw Materials
Trex has always been fully dedicated to using diverted wastes rather than virgin 
raw materials. We believe that sustainability matters. Our decking is made from 
95% recycled and reclaimed materials and lasts for decades. Our combination 
of long-life and diverted waste raw materials gives Trex environmental and 
economic advantages in our marketplace.
Obtaining consistent supplies of the required quality of these materials requires 
innovation and expertise beyond simply purchasing virgin wood and plastic. It 
would be easier to buy and manufacture with virgin materials, but Trex doesn’t 
do that. 
That’s why we work so hard to solve the logistical and technical challenges 
enabling us to source and use waste polyethylene film, bags and wraps as one 
of our two main raw materials. The second major component of our decking is 
wood, and we go to great lengths to source reclaimed wood to make the core of 
our decking.
We don’t just recycle these materials. We upcycle them, meaning we create a 
product of higher value and greater utility than the original materials.
Our decking is made 
from 95% recycled and 
reclaimed materials 
and lasts for decades 
95%

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How We Source Polyethylene Film for Upcycling 
Trex is one of the largest buyers of recycled polyethylene film in North 
America. We have spent years developing many sources of waste polyethylene 
film. In 2020, we upcycled more than 350 million pounds of plastic film 
otherwise destined for incineration or landfills. As we expand our business, we 
are continually researching new sources of material to upcycle.
We have contracts with major retailers, manufacturers and distribution centers 
to secure this supply in bulk. We collect post-consumer plastic film through 
our NexTrex® program from a network of approximately 32,000 collection 
stations at stores and distribution centers across the United States and 
Canada. NexTrex brings together consumers, retailers and brand owners to 
collect the bulk of our recycled plastic needs.
In addition, our school and community recycling programs are designed to 
spread awareness of the importance of recycling plastic bags and film and 
engage people in grassroots collection and recycling. Schools and community 
groups involved in our programs collect their waste polyethylene packaging 
and drop it off at the many local collection points Trex has established. Despite 
the challenging circumstances in 2020, we diverted approximately 850,000 
pounds of plastic film from landfills for recycling. Since the start of the 
programs in 2011, we have recycled approximately 3.5 million pounds of waste 
plastic film through community outreach. See Environmental Outreach for 
more information.

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Expanding Our Plastic Film Upcycling
We continue to experience strong broad-based 
demand for our products and benefit from 
our long-term strategy to convert consumers 
from wood decking to Trex composite decking. 
As demand grows, we continually evaluate 
and develop additional sources of recycled 
polyethylene film to ensure the availability of 
quality recycled material to manufacture our 
products. Sources under consideration include 
polyethylene film from agriculture, municipal waste 
and manufacturing scrap. At the same time as we 
are growing our capacity to upcycle waste plastic 
film, more corporate producers of this waste are 
motivated by pressure from ESG investors to avoid 
sending waste materials to landfills. Consequently, 
supply is increasing with our demand.

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How We Source Reclaimed Wood for Upcycling
Trex is committed to responsibly sourcing reclaimed wood materials. We 
source a significant percentage of reclaimed wood fiber from suppliers whose 
wood products are certified by leading forestry management organizations.
We purchase reclaimed wood for our manufacturing sites in Virginia and 
Nevada, including sawdust produced by the wood fabrication industry, mixed 
wood scrap from many sources and agricultural waste wood.
As with polyethylene, to maintain our principle of using the absolute minimum 
of virgin materials, we actively research new sources of reclaimed wood to 
feed our growing needs.

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Product 
Lifecycle 
Impacts
As part of our ongoing commitment to 
continuous environmental innovation and 
impact reduction, we use lifecycle assessment 
(LCA) for our flagship composite decking 
products. This identifies opportunities to reduce 
the environmental footprint of our products 
and process. We publish a summary of our 
LCA data so that our customers can more fully 
understand the environmental impacts of our 
products when making a purchase decision.
We take a rigorous scientific approach to 
LCA, employing an independent consulting 
organization, Boustead Consulting & Associates, 
Ltd., to conduct the assessments. Boustead’s 
assessment conforms to the international 
standards ISO14040/44 and is peer reviewed by 
two independent third parties. To date, we have 
conducted two LCAs (2016 and 2019). 
We use the findings to help us establish a 
current baseline and enable us to make decisions 
based on science when making changes to our 
supply chain, manufacturing process or product 
specifications. We will continue to employ 
LCAs to document our impacts and to check 
our progress at relevant milestones. After we 
conclude our current investment in an expansion 
of our manufacturing operations, we will conduct 
our next LCA, which is planned for 2022.
Our 2019 assessment reflects the investments we 
made in our manufacturing plants to make our 
process more efficient and less environmentally 
impactful. The 2019 LCA demonstrated a 
reduction in our environmental footprint from 
2016, documenting reductions in energy use, 
greenhouse gas (GHG) emissions and public 
water use.

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The Environmental Benefits of Trex Decking 
Customers and stakeholders have a choice in the 
products they purchase and the companies they 
support. Choosing Trex provides documented 
environmental benefits due to the sustainable 
practices of our company and the reduced 
environmental impacts of our products. 
Our 2019 LCA confirmed significant environmental 
reductions in the footprint of our decking products 
just since 2016. And we are continuing to make 
further advances in reducing our impacts.
Trex believes transparency is important and 
publishes summary LCA data for our customers, 
investors and other stakeholders. The claims 
we make for our decking are supported by 
scientific data.

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↓50%
Eutrophication
↓2.1%
Smog
↓27%
Water use from public supply 
↓2.3%
Cooling water use 
Trex Product Footprint Improvements
↓9.5%
GHG emissions  
↓2.7%
Air pollutants 
↓10.3%
Fossil fuel use 
↓12.7%
Acidification 
We reduced the lifecycle footprint per foot of our decking in every impact category between 2016 and 2019 (find the data on page 29)...

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Lifecycle Environmental Impacts of Trex Decking
The table below shows the impact of Trex decking during the product lifespan per one million board feet.1
Impact Categories
ACQ-Treated Lumber
Trex Decking 2016
Trex Decking 2019
GHG emissions (g/CO2e)
2,190,000
1,395,000
1,263,000
Criteria air pollutants (microDALYs/g)
415
220
214
Fossil fuel use (MJ)
15,310
24,410
21,900
Acidification (mole hydrogen-ion eq.)
1,510
244
213
Eutrophication (g-N-eq.)
375
74
37
Smog (g-NOx eq.)
7,980
3,790
3,710
Public supply process water use (liters)
2,920
5,080
3,710
Cooling water use (liters)
N/A
2,670
2,608
1 Comparison based on 2011 LCA of ACQ-treated lumber per 2.5 million board feet. Assumed lifespans: ACQ-treated lumber — 10 years; Trex Decking — 25 years.

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We create Trex products through environmentally 
responsible manufacturing methods designed to 
minimize adverse impacts and conserve natural 
resources. Our manufacturing facilities in Virginia, 
Nevada and Minnesota employ the best available 
technologies for managing our environmental 
impacts on air, water and land. We divert nearly 
all our manufacturing-related waste from landfills 
by re-using them in our production process or 
recycling them off-site.
Through the $200 million capital expansion 
project that we completed in the first half of 2021, 
we are increasing our Trex Residential production 
capacity by 70%, compared with 2019 volume 
levels. With this growth comes even greater 
responsibility to operate in a sustainable way. 
We regularly assess environmental impacts at each 
stage of our manufacturing process and seek to 
continually improve our performance across three 
key areas:
•	Energy use and climate emissions
•	Waste and recycling
•	Water use
This is our first year publicly reporting our 
environmental impact data. Increases between 
2019 and 2020 are associated with the expansion 
of our manufacturing capacity this year.
Our Environmental Policy guides us in conducting 
business with complete respect for the 
environment. Key policy tenets include:
•	Using recycled, reclaimed and other 
waste resources whenever possible in our 
manufacturing process
•	Preventing pollution by maintaining 
environmental management as a core value
•	Developing and using environmentally 
acceptable, safe and efficient 
production methods
•	Identifying and complying with all legal and 
statutory requirements
Environmental Stewardship in 
Our Manufacturing

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Energy and Climate Impact
We strive to reduce energy use and associated 
greenhouse gas (GHG) emissions in Trex 
manufacturing operations by designing our 
facilities to run efficiently. This includes the use of 
a low-carbon manufacturing process and energy-
saving equipment in our production lines.
Cooling Towers
We have replaced air-cooled refrigerant systems 
at our Virginia and Nevada locations with 
cooling towers that use water recycled from 
our manufacturing operations. This change and 
associated actions have reduced our energy use 
related to cooling by approximately 40% in 2020.
LED Lighting
We installed energy-efficient LED light fixtures, 
which consume up to 80% less electricity1  
compared with incandescent or compact 
fluorescent bulbs, at our new and remodeled 
facilities in 2020. We plan to conduct energy 
assessments for existing buildings and future 
projects across the company.
Transportation
We seek to reduce automotive fuel consumption 
and GHG emissions by optimizing inbound and 
outbound loads at our plants. For example, we 
take steps to ensure that raw materials can be 
delivered directly to the Trex manufacturing site  
rather than a storage facility whenever possible. 
We are also seeking to transport more of our 
products and materials by rail, to ensure we fill 
as much of the available container space in each 
shipment as possible.
Energy Use and GHG Emissions
Data in this table is for Trex Residential.
Units
2018
2019
2020
GHG emissions 
(scope 1 and 2)
Metric tons CO2e
99,344
108,743
120,409
GHG emissions intensity
Metric tons CO2e/ 
$ million sales
0.162
0.157
0.145
Total energy use 
(electricity, natural gas and fuels)
MWh
295,100
331,922
366,689
Energy use intensity
MWh/$ million sales
0.481
0.478
0.443
1 Source: United States Department of Energy.

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Biodiversity
We make biodiversity a fundamental consideration in our planning 
for new construction. Before starting our recent capacity expansion, 
we engaged independent consultants to conduct an environmental 
risk analysis that helped guide our plans and mitigate impacts on the 
natural environment in and around our campus. We take this step 
each time we contemplate an expansion or start building at a site.

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Waste and Recycling
Trex recycles nearly 100% of factory scrap back 
into the manufacturing line and reintegrates 
scrapped boards into new products. We do the 
same with Trex’s wood and plastic packaging. Our 
stream of universal waste — a subset of hazardous 
waste that includes mercury relays, fluorescent 
light tubes and batteries — is properly separated 
and sent to recycling facilities. Scrap paper, 
cardboard, metals and plastic strapping from Trex 
operations are sent for recycling off-site.
We are exploring new avenues to channel waste 
from other parts of our business, such as the 
plastic utensils used in our dining areas and 
breakrooms, into our production stream. We are 
also studying potential ways to convert waste 
material left over from our manufacturing process 
into packaging for Trex products. 
Hydraulic Fluid
As of 2020, we use biodegradable, vegetable-
based hydraulic fluid in the production process at 
all of our sites. This alternative to petroleum-based 
oil allows us to recycle or dispose of our used fluid 
without harming the environment.
Waste Disposed and Recycled
Units
2019
2020
Non-hazardous waste disposed
Tons
9,680.7
15,149.2
Non-hazardous waste recycled 
(including energy recovery)
Tons
37.9
46.7
Hazardous waste disposed
Tons
1.0
0.5
Hazardous waste recycled 
(including universal waste)
Tons
9.7
5.1
Factory scrap 
recycled back into our 
manufacturing process 
in 2020
~100%

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Water Use 
All Trex manufacturing facilities operate under 
permits from their local municipal wastewater 
treatment authorities. We actively comply 
with these permits and work to further reduce 
stormwater runoff from our operations.
Closed-Loop Wastewater Recycling
Our Virginia and Nevada manufacturing facilities 
have closed-loop recirculation systems that run 
water through multiple cycles of re-use before 
being returned to the municipal wastewater 
stream. We increased the water usage cycle rates 
at our Virginia facilities by approximately 15% 
in 2020 compared with the previous year. Our 
systems treated and recycled approximately 99% 
of the water we used in 2020.
Through additional improvements in the closed-
loop system at our Nevada facility, we aim 
to reduce the site’s water use by 25% in 2021 
compared with 2020 levels.
Controlling Runoff
We maintain extensive water collection and 
filtration systems on the rooftops, downspouts and 
drains at each manufacturing site. These systems 
enable us to control the runoff of phosphorus, 
nitrogen and other particulates from our operations.
As a result, we comply with the stringent 
permit requirements for reducing stormwater 
runoff at our Virginia facilities, which lie within 
the Chesapeake Bay Watershed Area. Our 
systems also help reduce or eliminate negative 
environmental impacts in the event of an 
accidental spill or leakage.
In 2020, construction of our new 200,000- 
square-foot decking plant in Virginia included a 
bioretention pond to offset the loss of vegetation 
in that area. This pond helps maintain ecologically 
healthy levels of phosphorus and nitrogen for 
local wildlife.
Water Use
Units
2018
2019
2020
Water from public supply
Million gals
           158.05 
  159.97 
       178.14 
Water recycled
Million gals
3,512.14
4,443.66
12,724.17
Water recycled 
annually by closed-loop 
recirculation systems at 
our Virginia and Nevada 
manufacturing facilities
~99%

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Environmental Compliance
Trex manufacturing operations comply with 
various municipal, state and federal regulations 
governing each of our locations. We seek to 
surpass the minimum required standards as part 
of our efforts to be a leader in environmental 
stewardship.
Chemicals Management
Since we primarily combine wood and heated 
plastic to create Trex residential products, our 
manufacturing process requires only small amounts 
of chemical additives. We use these chemicals at 
levels well below the established thresholds for 
worker safety and environmental health.
A licensed and certified waste management 
company handles the recycling and disposal of 
materials containing potentially hazardous chemicals 
from our manufacturing operations. We store and 
handle ancillary chemicals for Trex’s manufacturing 
process in accordance with permit requirements and 
our stringent internal safety standards.
Clean Air Technologies
Trex’s manufacturing process does not generate 
any appreciable non-CO2 GHG emissions that 
would negatively affect air quality. We control 
emissions of particulates, volatile organic 
compounds (VOCs) and other air toxins at levels 
well below federal and state standards.
Pollution control measures at our plants include air 
emission scrubber technology on each ventilation 
system. In addition, our newly built facility in 
Virginia features a state-of-the-art regenerative 
thermal oxidation (RTO) unit that keeps our 
campus-wide VOC emissions below the federal 
air permit threshold. This RTO unit reduces 
VOCs, particulates and other airborne pollutants 
without using chemicals to treat the air stream, 
which scrubbers require. We expect the RTO unit 
to destroy 95% of VOC emissions from our new 
production lines.
Environmental Compliance Data
Units
2018
2019
2020
Environmental compliance (waste, 
water, chemicals, air emissions)
Fines
None
None
None
A Clean Record. Trex recorded zero 
environmental compliance issues at its 
manufacturing operations in 2020.

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People

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Health and Safety
The safety and well-being of our employees is a top priority at Trex, and we 
work to promote a company-wide culture of safety and accountability. Our 
commitment to this important area is outlined by our Occupational Health 
and Safety Policy. 
Health and safety is a core focus at all our operations, but especially at 
the plants that make our products. Each site has a dedicated health and 
safety manager and committee, and we provide employees with regular, 
role-appropriate training. The Plant Safety Manager ensures safety is at 
the forefront of how our manufacturing facilities operate every day, while 
employee representatives from the Site Safety Committee collect and 
discuss feedback from colleagues on the plant floor.
Our Design for Safety Program ensures safety is factored into every decision 
we make. The program outlines safety protocols, such as proper labeling of 
machinery, to ensure all the equipment at our plants is safe to use.
As part of our commitment to maintaining a safety-conscious working 
environment, we encourage employees to report any hazards or concerns 
to the Plant Safety Manager or a representative from the Plant Safety 
Committee. We install boxes in breakrooms where employees can leave a 
note detailing any concerns. Our memberships in the Voluntary Protection 
Program Participants Association, the National Safety Council and the 
National Fire Protection Association help us to stay abreast of the latest 
health and safety guidance.

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Employee Training 
Our production employees receive regular 
health and safety training. We deliver group 
training sessions for production employees at the 
beginning of each biweekly crew rotation. All new 
production employees receive three days of online 
training on topics including fire safety, hazards in 
confined spaces and hearing loss prevention. In 
2020, we added a training module on COVID-19 
prevention in the workplace. 
Members of our plant safety committees 
continued to receive training through state 
occupational safety and health programs in 2020. 
We continue to support plant safety managers to 
become Certified Occupational Safety Specialists 
(COSS) and Certificate for Occupational Safety 
Managers (COSM), although the pandemic 
resulted in some delay to course access.
In 2020, as we expanded our operations and hired 
approximately 350 new people, we maintained 
the proportion of employees that received health 
and safety training. We plan to scale up training to 
reach more employees.
Employee Health and Safety Training
2018
2019
2020
Number of Trex Residential1 employees 
who completed training
747
848
1,093
% of Trex Residential employees who 
completed training
72%
72%
70%
1 Trex Residential Products includes 90% (1,555) of Trex’s total employees. Employees at Trex Commercial Products receive similar training through Trex 
Commercial’s safety program.
Listening to Our Employees 
Safety concerns reported by employees led to 
significant improvements. We made it safer to use 
our bundle saw machine by improving protective 
machine guarding and eliminating ergonomic 
risks. We also reduced hazards while using 
hydraulic equipment by adding hose restraints.

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Health and Safety Performance 
Rapid expansion in our production capacity 
resulted in an increase in new hires who required 
training to familiarize themselves with our safety 
protocols. Consequently, our Recordable Incident 
Rate (RIR) and Lost Time Injury Rate (LTIR) 
increased in 2020. While our injury rates remain 
below the industry averages, we are committed 
to improving our performance. Our goal is a 30% 
reduction in RIR and LTIR in 2021. To achieve 
this, we are creating an executive level position 
to oversee and manage health and safety at our 
manufacturing facilities, and we are increasing the 
number of safety professionals by 50% across our 
Virginia and Nevada manufacturing facilities.
Employee Incident Rates1
2018
2019
2020
Bureau of Labor Statistics 
Industry Average2
Recordable Incident Rate 
3.04
 2.32
3.93
 4.1
Lost Time Incident Rate
0.42
 0.45
0.82
 1.2
1 Data shows Trex’s Recordable Incident Rate and Lost Time Incident Rate, as defined by the Occupational Safety and Health Administration.
2 Industry averages relate to North American Industry Classification System (NAICS) code 321999.

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Keeping Employees Safe 
During COVID-19
At the outbreak of the COVID-19 pandemic, 
we activated our Crisis Management Team to 
lead our response and protect our workforce. 
The team consists of executive management 
from each functional area, as well as several 
members from Human Resources and 
Environmental Health and Safety. The team 
actively managed Trex’s response to the 
crisis, keeping abreast of the rapidly evolving 
situation, finding new ways to help mitigate 
risk and identifying opportunities for us to 
exceed recommendations. We efficiently 
implemented safety measures based on 
guidance from the Centers for Disease 
Control and Prevention, the World Health 
Organization and the local public health 
authorities where we operate.
Our strategy involved increasing sanitation 
processes across our operations and 
introducing procedures to minimize 
contact between employees. New 
procedures included:
•	Checking employees’ temperatures at 
the start of every shift by implementing 
automated temperature scanners at 
facility entrances to help identify cases 
of infection
•	Introducing portable wash stations and 
hand sanitizer stations at site entrances 
and other frequently used access points
•	Fitting offices and breakrooms with 
air purifiers and air filters that remove 
airborne pathogens
•	Sanitizing work areas at least twice 
per shift
•	Building dividers between workstations 
in our warehouses
•	Establishing remote-working 
arrangements for employees in roles 
where this was feasible, including 
updating IT systems to ensure employees 
could work from home effectively
•	Distributing face masks and other 
protective equipment to all employees 
across all our facilities
•	Introducing social distancing measures 
at all our sites
If an employee tests positive for the virus, 
we require them to isolate for 14 days of paid 
sick leave and we conduct a contact tracing 
investigation to identify co-workers at high 
risk of exposure.

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Employee Wellness
We continue to encourage employees to be proactive about 
their well-being through our Wellness Program. During 2020, 
the Wellness Program was available to Trex Residential 
Products employees enrolled in our benefits program, with 
50% of these employees choosing to participate. We also 
worked to open the program to Trex Commercial Products 
employees and, in 2021, both Trex Residential and Trex 
Commercial have Wellness Programs.
Each year, we hold biometric screenings to give employees 
a snapshot of their overall health and alert them to any 
issues. We encourage employees to visit a primary care 
physician for a preventative health check-up, including age-
appropriate health screenings, and we offer free flu shots.
In addition to our Wellness Program, we organized a financial 
wellness workshop where employees could learn more about 
personal finance matters including saving for retirement.

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Diversity and Inclusion
Trex is committed to offering a diverse, equitable and inclusive work 
environment. We believe these characteristics strengthen our company by 
attracting employees with varied experiences and perspectives, leading to 
creative problem solving and innovation. 
In 2020, we continued refining our strategy to increase diversity in 
our workforce and ensure that all Trex employees feel supported and 
empowered to thrive in their roles. Inclusivity forms the core of our 
approach to recruitment, training, engagement, retention and 
career development.

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Inclusive Recruitment
We have always recognized that hiring the best 
available talent is crucial to our ongoing success. 
Our recruiting strategy includes broad-based 
outreach as well as targeted campaigns geared 
toward increasing the proportion of diverse 
employees in specific roles or geographic locations.
We have re-engineered our Trex Careers website 
and recruitment advertising to reflect broader 
ethnic and gender diversity. Also, our company 
actively recruits on diverse and inclusive 
employment sites, such as Diversity.com and all 
major job boards, as well as on university campuses 
that have diverse and inclusive student populations.
We are developing relationships with universities 
and high schools in the communities where 
Trex operates to build interest in careers with 
our company among women, ethnic minorities 
and other diverse groups of students. Trex 
representatives participate in job fairs, classroom 
visits and other opportunities to connect with 
future graduates who are underrepresented in the 
manufacturing industry. At Virginia Polytechnic 
Institute and State University (Virginia Tech), we 
work closely with the Council for the Advancement 
of Minority Engineering Organizations to promote 
career opportunities at Trex.
In 2020, we launched a recruiting campaign 
specifically for Spanish-speaking job seekers and 
enhanced our focus on reaching out to current 
and former members of the military. The Virginia 
Values Veterans program, which focuses on 
educating the business community about the 
value of hiring military veterans, certified Trex as 
a preferred employer in 2020. This certification 
recognizes our commitment to bring veterans into 
our workforce.
As part of our efforts to identify and eliminate 
the potential for unconscious bias in Trex’s 
hiring practices, we implemented new candidate 
assessment tools for select positions starting 
in 2020. Initial steps included revising our job 
descriptions to ensure they use clear and inclusive 
language. We teamed with outside experts to 
develop and conduct pre-employment screening 
and testing of applicants who may lack an 
educational diploma or industry-specific experience 
but can show their aptitude in other ways.
We aim to add well-qualified employees from 
diverse backgrounds throughout our operations. 
In 2020, the proportions of female and ethnically 
diverse employees were 23% and 17%, respectively. 
We will continue activities to grow our business 
in an inclusive way. In March 2021, the company 
welcomed Gena Lovett to the Board of Directors, 
which increased the percentage of women on our 
Board to 30%.
Female and Diverse Employees
2018
2019
2020
Female employees  
259 (23%) 
292 (22%)
387 (23%)
Diverse employees   
 174 (15%)
 202 (15%)
 289 (17%)
Women in management  
34 (21%)
36 (22%)
37 (22%)
Diverse employees in management
8 (5%)
10 (6%)
10 (6%)

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Diversity and Inclusion Training
At Trex, we want to grow a diverse and inclusive culture 
where all feel welcome and respected. With this in mind, 
we launched our first-ever company-wide diversity and 
inclusion (D&I) training initiative in late 2020.
All employees are required to participate in these training 
sessions, which are moderated by outside experts. 
Focal points include valuing differences, communicating 
inclusively, recognizing unconscious biases and refraining 
from harassment or other behaviors that create a hostile 
work environment. We had provided D&I training to almost 
all our corporate office employees by the end of March 
2021, and training for our manufacturing employees will 
begin later this year.
Advancing Our Commitment
We will continue to communicate openly with people 
across Trex about the company’s goals to foster a diverse, 
equitable and inclusive work environment. As part of our 
next biennial Employee Engagement Survey in 2021, we are 
developing additional questions to help gauge the level of 
satisfaction with our approach and progress among our 
employees. Our Human Resources Team will work with Trex 
senior management to pinpoint areas for improvement and 
further Trex’s D&I efforts.

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Fair and Equitable Pay
Trex strives to be an industry leader in 
terms of hourly wages, salary and total 
compensation.
As an equal opportunity employer, Trex is 
committed to providing fair and equitable pay for 
all employees across the company. We strive to be 
an industry leader in terms of hourly wages, salary 
and total compensation.
We use a compensation grade structure as part of 
our process to determine the appropriate grade 
level for each position at Trex. As a result, we set 
the pay range for each position before considering 
who we might hire to fill that role.
As a further step in adhering to fair and equitable 
compensation practices, we added an external 
competitive analysis to our approach in 2020. 
This analysis helps us evaluate the appropriate 
pay range for a specific role across different 
companies, not just in comparison with similarly 
graded roles at Trex. In a few specific departments 
for which we must compete especially hard 
to attract top candidates, we apply additional 
gauges and market studies to help ensure we pay 
employees fairly and equitably. 
More broadly, we continue to investigate additional 
sources of credible external market data for Trex 
to use in developing salary offers. We believe that 
greater reliance on qualified data will help prevent 
our company from perpetuating any pay inequities 
that might already exist.

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Addressing Gender and Ethnicity Issues in 
Our Pay Practices
We regularly review our compensation structures for 
signs of emerging inequities along gender or ethnicity 
lines. In 2020, we conducted a gender-based pay 
equity assessment to identify any potential biases 
or other issues. This in-depth analysis of all roles 
in the company found no gender pay gap. Moving 
forward, we plan to conduct ongoing pay equity 
analyses to help us identify areas of concern across all 
classifications and adjust accordingly.
Employee Compensation
2018
2019
2020
Median annual employee compensation 
$66,844
$68,243
$71,830
National median annual household income1
$61,937
$65,712 
Not available 
at time of 
publication
CEO-to-employee pay ratio vs. national average  
Trex
39.4 : 1.0
40.6 : 1.0
39.8 : 1.0
National average2
282.5 : 1.0
276.2 : 1.0
307.3 : 1.0 
1 Source: United States Census Bureau.
2 Source: Economic Policy Institute. Data for early-reporting companies in 2020 and 2019, and for the first half of 2018.

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Training and 
Professional 
Development
Trex thrives on the talents and motivation that 
our employees bring to work every day. We seek 
to attract, develop and retain a highly engaged 
and diverse workforce by providing valuable 
opportunities for employees to grow throughout 
their careers at Trex.
Our investment in skill-building, leadership 
development and continuing education at all levels 
of the company contributes to higher-quality 
products and greater customer satisfaction. 
Robust training and development programs help 
us reduce employee turnover and move further 
ahead in our competitive industry.
In 2020, we formed a new department focused 
solely on employee training and development. 
Despite the challenge of conducting many 
programs virtually amid the COVID-19 pandemic, 
we managed to deliver more than 22,000 person 
hours of training over the course of the year. Our 
programs grew to accommodate a 29% increase in 
full-time employees year-over-year.
Onboarding of Employees
Our recent employee engagement surveys yielded 
a clear message that we needed to improve 
integrating new people into Trex operations and 
the company’s culture. After successfully piloting 
key improvements to our onboarding program at 
our Virginia facility in 2019, we rolled out these 
changes in our Nevada operations in 2020. New 
hires collectively received more than 20,700 
person hours of training last year.
Onboarding for our employees is now more 
interactive, and more closely aligned to specific 
roles and responsibilities. The program maintains 
a core focus on safety at our production plants to 
equip incoming employees with the knowledge for 
a safe and successful career with Trex.
We also established a new full-time training 
specialist role within each of our production 
plants. These dedicated trainers are available 
throughout each shift to answer questions, 
reinforce best practices and help ensure every 
employee feels supported.
LevelUp
We created the Trex LevelUp Program in 2020 to 
help identify job candidates with a high potential 
for promotion in our production operations. 
Workers enrolled in LevelUp start as a line 
operator and can be promoted to line technician 
after six months. Along with specialized classroom 
and on-the-job training, LevelUp graduates receive 
follow-up support to continue developing their 
skills. Current Trex employees can also apply to 
participate in LevelUp.

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Internships
We offer several internship opportunities each year 
for recent college graduates. In 2020, this included 
opportunities for students in engineering and 
technology degree programs. We aim to grow this 
program and include more departments across the 
company in the coming years.
ESL Classes
Trex has provided instruction in English as a 
second language (ESL) to all interested employees 
for several years. Although the company halted 
in-person ESL courses during 2020 due to the 
pandemic, we intend to resume this program as 
soon as conditions allow.
Trex University
Located near our Virginia manufacturing plant, 
Trex University is a state-of-the-art training facility 
where we educate retailers, contractors and other 
partners about the company’s product lineup. This 
program helps Trex partners better understand 
how we produce our aesthetically pleasing, high-
performance and low-maintenance, eco-friendly 
outdoor living products. More than 200 dealers, 
distributors and TrexPro® deck installers attended 
Trex University courses in early 2020, before the 
pandemic forced us to curtail in-person sessions. 
In a typical year, more than 1,100 people attend 
Trex University.
Leadership Development
We provide an array of voluntary training for both 
new and experienced leaders across Trex to help 
strengthen their managerial skills in areas such as 
team building, communication and performance 
evaluation. These offerings included more than 
1,400 person hours of leadership development 
training in 2020.
Reimbursement of permanent full-
time employees’ tuition and book 
expenses for continuing education 
courses in programs related to 
our business. Trex also offers a 
tuition reimbursement program 
for permanent full-time employees 
pursuing associate’s, bachelor’s and 
master’s degrees.
100%

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President’s Award for Teamwork
2020 marked the second year of this award, which we created to recognize high-
performing teams within Trex that exemplify cross-functional collaboration. We 
recognized 67 employees, representing multiple departments throughout the 
company, with this award in 2020 including for work on expansion activities at 
our Virginia and Nevada manufacturing facilities.

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Online Training Resources
In 2021, we will offer most Trex employees 
a subscription to LinkedIn Learning as an 
additional resource for professional development 
in a broad range of business-oriented topics 
such as leadership, management and corporate 
finance. This website provides access to more 
than 16,000 courses in English, Spanish and 
several other languages.
Training and Employee Development
2019
2020
Person hours of training 
Leadership
1,600+
1,400+
Onboarding
-
20,700+
Voluntary turnover rate for Trex Residential 
employees with >1 year of service
7%
5%

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Social Impact in 
Our Communities
At Trex, we believe in taking care of the environment and 
giving back to the communities we call home. Through our 
recycling programs and community investment projects, we 
make a lasting impact on people and the planet.

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Environmental Outreach 
We are one of the largest recyclers of 
polyethylene film bags, wraps and packaging 
in North America and a leader in educating and 
engaging both the commercial and consumer 
sectors in recycling efforts. Our school and 
community recycling programs inform people 
about the importance of recycling plastic bags 
and film, and engage them in collection and 
recycling. Schools and community groups 
involved in our programs collect their waste 
polyethylene packaging and drop it off at local 
collection points Trex has established through our 
NexTrex® store collection program.
Our NexTrex program has over 32,000 collection 
locations across the United States and Canada. 
After collection, the polyethylene is sent to Trex’s 
warehouse where it is processed for use in Trex 
products. Participating consumers, retailers and 
brand owners benefit from knowing their waste 
polyethylene film will be recycled in the United 
States by Trex.
Despite the challenging circumstances in 2020, 
we diverted approximately 850,000 pounds of 
plastic film from landfills through our school and 
community recycling programs. Our programs 
were disrupted by the COVID-19 pandemic, 
particularly as some collection points were 
temporarily closed. But many of our dedicated 
community groups continued efforts to collect 
plastic. Since the start of the programs in 2011, we 
have recycled approximately 3.5 million pounds of 
waste plastic film through community outreach.
Community Program
Community groups from across the country — 
including church groups, retirement communities, 
Lions Clubs and Girl Scout troops — participate 
in our recycling program. We donate a high-
performance Trex composite bench to any 
group that collects more than 500 pounds of 
polyethylene film in a six-month period as a 
reward for their outstanding contribution. In 
2020, more than 2,500 community groups took 
part in the program. 
School Program
Our Plastic Film Recycling Challenge for K-12 
Students educates students and their families 
about the importance of recycling. Schools across 
the country sign up for the challenge and compete 
to collect the most plastic film. We donate a high-
performance composite bench to the winning 
school, and smaller prizes including birdhouses, 
planter boxes and certificate frames to the 
other participating schools. In 2020, 331 schools 
participated, with the winning school, Eisenhower 
Elementary in Russell, Pennsylvania, collecting 
more than 7,300 pounds of plastic waste.

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Trex expanded support beyond our local United 
Way in Virginia — the United Way of Northern 
Shenandoah Valley — to include donations to the 
Nevada and Minnesota branches of United Way. 
During the pandemic, we made an emergency 
donation of $10,000 each to the Nevada and 
Minnesota United Way programs to support local 
COVID-19 pandemic relief efforts.
Our 2020 Day of Caring, where Trex employees 
spend a day volunteering locally, was held in 
September during our United Way campaign. 
Despite the pandemic, our employees found 
ways to safely give back to their communities. 
Volunteering activities included landscaping and 
clean-up projects for local non-profits. 
The Yellow Ribbon Fund 
Trex is in the first year of our three-year 
partnership with the Yellow Ribbon Fund, a 
charity that supports military veterans and their 
families. We’ve committed to donate $180,000 
between 2020 and 2022, matching additional 
employee donations dollar-for-dollar. Our 
donation will support the Yellow Ribbon Fund 
to provide housing, transportation and family 
support to severely wounded, ill and injured 
service men and women.
Community Investment
2019
2020
Total community investment
$416,000
$512,000
Corporate donations1
$310,000
$416,000
Employee cash donations
$106,000
$96,000
1 Includes corporate in-kind donations. 
Community Investment
We support charitable organizations that serve 
our local communities through donations and 
volunteering events. We directly support non-
profits that cater to the most pressing needs of the 
communities where we operate, with a focus on 
advancing educational and environmental initiatives 
as well as improving the lives of children. In 2020, 
together with our employees, we donated around 
$512,000 to community investment initiatives.
In 2020, we responded to the COVID-19 pandemic 
by directing community investments to non-profit 
partners addressing urgent local needs as well 
as national organizations supporting COVID-19 
pandemic relief efforts across the United States. We 
supported local hospitals by donating face masks. 
United Way
Our longstanding partnership with the United Way 
of Northern Shenandoah Valley helps improve the 
lives of people in the communities where we work. 
Trex’s annual fundraising campaign supports United 
Way to run local initiatives focused on improving 
health, education and financial stability. We match 
employee donations to the campaign and, in 2020, 
together we donated more than $191,000. We were 
the largest contributor to the Northern Shenandoah 
Valley branch in 2020 and received a Gold Award 
from United Way for our donation.

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Feeding America
In response to the COVID-19 pandemic, we donated 
$120,000 from sales of decking samples to Feeding 
America, the nation’s largest domestic hunger relief 
organization. It’s estimated that 45 million people 
may have faced food insecurity in the United States 
during 2020 in the wake of the pandemic. Our 
donation supported Feeding America’s nationwide 
network of 60,000 food pantries and meal 
programs to provide for people in need.
Other Investments in Our Communities
We are proud to support organizations that fund 
initiatives and programs that make a positive 
impact on children’s lives. In 2020, a donation from 
Trex helped fund a pop-up “sock skating” rink 
on the roof of the Shenandoah Valley Discovery 
Museum — offering a way for kids to have fun 
safely during the pandemic. 
We also continued efforts to help those in crisis 
in our communities. Examples include donating 
to Response, Inc., which provides safe housing 
and support services to those suffering domestic 
violence, and to the Winchester Area Temporary 
Thermal Shelter, which offers homeless people a 
place to shelter from the elements.

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Governance

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Our Board has three standing committees: 
•	The Audit Committee, which oversees 
matters related to the company’s accounting 
and auditing 
•	The Compensation Committee, which reviews, 
determines and approves compensation and 
benefits of the company’s officers
•	The Nominating/Corporate Governance 
Committee, which recommends candidates for 
election to the Board and its committees, as 
well as oversees matters including corporate 
governance, succession planning and non-
employee director compensation
Each of these committees plays an important role 
in the governance and leadership of our Board and 
each is chaired by an independent director. Read 
more about each Committee’s charter here.
Other than current President and Chief Executive 
Officer, Bryan H. Fairbanks, and former President 
and Chief Executive Officer, James E. Cline, who 
is now Chairman of our Board, all our Board 
members are considered independent under 
applicable legal and stock exchange standards. 
During 2020, our Board membership included two 
women (one of whom was the Lead Independent 
Director) and, in March 2021, we increased this to 
three female Board members. 
In 2020, no corporate funds were donated for 
political advocacy or other political purposes. We 
also updated our voting procedures for electing 
directors, introducing majority rather than plurality 
voting. This ensures that every decision is truly 
representative of our shareholders’ preferences. 
Read more about our Corporate Governance 
Principles and our Board members.
Corporate 
Governance
Strong corporate governance is essential to the 
success of our business. Our corporate governance 
practices enable us to manage risks, ensure our 
actions align with our values and foster a culture 
of integrity.
The Board of Directors and the senior 
management team are collectively responsible for 
the leadership, control, development and long-
term success of our company. Their responsibilities 
include providing policy guidance, monitoring 
corporate performance and the integrity of 
financial information, and overseeing enterprise 
risk management programs.
Our Board of Directors, led by non-executive 
Chairman, James E. Cline, provides stable, 
experienced and diverse oversight to our business. 
Annually, the senior management team prepares a 
multi-year strategic plan which is reviewed by the 
Board. The Board and senior management team 
work together to review progress towards the 
stated goals quarterly.

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Bryan H. Fairbanks
President and 
Chief Executive Officer
James E. Cline
Chairman
Michael F. Golden
Director
Jay M. Gratz
Director
Kristine L. Juster
Director
Ronald W. Kaplan
Vice Chairman
Gena C. Lovett
Director
Richard E. Posey
Lead Independent 
Director
Patricia B. Robinson
Director1
Gerald Volas
Director
Board of Directors
As of May 2021
1 Patricia B. Robinson was our Lead Independent Director during 2020.

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Stock Ownership
Since December 2013, our Stock Ownership 
Guidelines ensure that our directors’ and officers’ 
interests align with those of our shareholders. 
These guidelines require Trex’s CEO to hold three 
times the value of shares in Trex as their base 
salary (based on the market value of our common 
stock), and our directors to hold three times 
their annual cash retainer. For our other officers, 
between 1-1.5 times their base salary is required. 
New officers and directors have five years to 
comply. As of December 31, 2020, directors and 
officers held significantly more shares than their 
required minimum stock holdings and all directors, 
except one who was appointed in October 2019, 
met requirements.
Stock Holdings1
Officers
Outside Directors
Required shares
59,359
23,919
Shares owned and held
467,532
173,698
Multiple of requirement held
7.88
7.26
1 Data is presented as an aggregate number of shares held by officers and directors, respectively. Data as of December 31, 2020. Figures vary from those 
in our 2019 ESG Report due to a two-for-one stock split of the company’s common stock in September 2020, as well as increases in the company’s 
stock price.

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Sustainability 
Governance 
Respect for the environment is part of Trex’s 
values. We are committed to operating in a way 
that reduces our impact on the planet and creating 
eco-friendly products that last. 
Trex regularly reviews the issues material to our 
business. This helps us focus on the environmental 
and social topics of greatest concern to our 
shareholders and material significance for our 
impact on the planet and our communities. 
Our Environmental Policy forms the backbone 
of our sustainability governance. It details our 
commitment to conducting business in an ethical 
and socially responsible manner with complete 
respect for the environment. Environmental 
governance matters are the responsibility of 
the executive management team, including the 
President and Chief Executive Officer, the Senior 
Vice President and Chief Financial Officer, and 
the Senior Vice President, General Counsel and 
Secretary. We regularly engage our stakeholders 
on sustainability issues through various 
communications channels, including our investor 
presentations and conferences, reports, website 
and regular news articles. 
Our Environmental Policy 
•	Use recycled, reclaimed and other waste 
resources whenever possible in our 
manufacturing process
•	Recycle packaging materials
•	Re-use our production waste in the 
manufacturing process
•	Prevent pollution by maintaining 
environmental management as a core 
value
•	Lead environmental performance 
through management example, employee 
involvement and employee empowerment
•	Develop and use environmentally 
acceptable, safe and efficient production 
methods
•	Identify and comply with all legal and 
statutory requirements
•	Evaluate our progress against key 
performance indicators to enable 
continuous improvement

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Our Supply Chain 
Together with our suppliers, we work to reduce 
environmental impacts across our supply 
chain. We expect business partners to comply 
with all applicable environmental laws and 
regulations, and encourage them to minimize 
their use of natural resources while reducing the 
environmental impact of their operations. The 
Trex Vendor and Customer Code of Conduct and 
Ethics outlines our expectations for suppliers and 
customers. Who we work with is dependent on 
compliance with these standards.
We purchase approximately 95% of our raw 
materials (in dollar value) from suppliers located 
in the United States and Canada. This means we 
are not as exposed to the same supply chain risks 
faced by companies with global supply chains. We 
conduct risk assessments to determine whether 
vendors meet our social and quality standards. 
Where necessary, we require new vendors to 
complete a virtual self-assessment to ensure they 
meet our standards. These assessments cover 
supplier quality, labor practices, compliance with 
government regulations and safety. Periodically, 
we also conduct operating facility tours and 
on-site social and quality audits, particularly for 
vendors outside of the United States. In 2020, 
on-site audits were disrupted by the COVID-19 
pandemic, so we relied more heavily on self-
assessments. We will resume on-site audits when it 
is safe to do so.

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Ethics
Acting with integrity is one of our core values 
at Trex. We strive to always uphold a culture 
of respect, employee fairness and continuous 
improvement. Our values are reflected in how we 
treat our employees, customers and suppliers, 
and how we engage with the communities where 
we operate. 
We expect all Trex employees to conduct business 
according to the high ethical standards laid out 
in our Code of Conduct and Ethics. This code is 
designed to ensure employees understand the 
basic principles and standards that govern the 
conduct of Trex’s business. 
We communicate our Code of Conduct and Ethics 
to all employees and share our expectations for 
ethical behavior in our employee handbook to 
ensure all employees are aware of their ethical and 
legal responsibilities. We also assign online ethics 
training modules to all office-based employees at 
least once a year.
Trex expects all vendors and customers to adhere 
to applicable laws and regulations and uphold 
our high standards of ethical behavior, as outlined 
in our Vendor and Customer Code of Conduct 
and Ethics. We only work with vendors and 
customers who share our standards for ethical and 
responsible business practices. 
We are deeply committed to respecting and 
upholding the rights of all our employees, business 
partners, customers and communities. Our Human 
Rights Policy underscores this commitment and 
details our approach to human rights issues 
including working hours, discrimination, and child 
and forced labor. The policy clearly states that 
we comply with all applicable national laws and 
international treaties concerning human rights, 
social rights and labor rights, and is consistent 
with the principles of the United Nations Universal 
Declaration of Human Rights. 
Reporting Concerns
We encourage employees to report suspected 
violations of our Code of Conduct and Ethics or 
legal requirements. Employees can raise concerns 
directly through their supervisor, Employee 
Relations Manager, the Vice President of Human 
Resources or the General Counsel. Anyone, 
including third parties, can raise a concern 
anonymously through our Corporate Governance 
Hotline, available 24-hours a day, 365-days a year 
by a toll-free telephone number listed on our 
website. Investors and other interested parties can 
contact the Board via the hotline or in writing. An 
independent third-party maintains the Corporate 
Governance Hotline and all calls are immediately 
directed to the General Counsel and Chief 
Financial Officer’s attention, who are responsible 
for investigating any reports. If a violation is 
confirmed, we identify and implement corrective 
measures to prevent a reoccurrence.

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SASB Index

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Sustainability Accounting Standards 
Board (SASB) Index
Building Products and Furnishings Standard
Trex is the world’s largest manufacturer of composite decking and railing products, and a leading provider of custom-engineered railing systems for the 
commercial and multi-family market, including sports stadiums and performing arts venues. Our SASB Index is aligned with the Building Products and 
Furnishings standard.
SASB Code
Metric
Response for FY20
Energy Management in Manufacturing
CG-BF-130a.1
(1) Total energy consumed 
(2) Percentage grid electricity 
(3) Percentage renewable
See page 31 of our 2020 ESG Report.
Management of Chemicals in Products
CG-BF-250a.1
Discussion of processes to assess and manage 
risks and/or hazards associated with chemicals 
in products
See page 35 of our 2020 ESG Report.
CG-BF-250a.2
Percentage of eligible products meeting 
volatile organic compound (VOC) emissions 
and content standards
Not applicable. Trex end user products do not emit 
any appreciable VOCs.

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SASB Code
Metric
Response for FY20
Product Lifecycle Environmental Impacts
CG-BF-410a.1
Description of efforts to manage product lifecycle 
impacts and meet demand for sustainable products
See pages 21-29 of our 2020 ESG Report.
CG-BF-410a.2
(1) Weight of end-of-life material recovered 
(2) Percentage of recovered materials recycled
In 2020, Trex upcycled more than 900 million 
pounds of waste polyethylene film and reclaimed 
wood. Trex recycled nearly 100% of internally 
generated product waste back into our 
manufacturing process. Find further detail on pages 
11, 23-25 and 33 of our 2020 ESG Report.
Wood Supply Chain Management
CG-BF-430a.1
(1) Total weight of wood fiber materials purchased 
(2) Percentage from third-party certified 
forestlands
(3) Percentage by standard 
(4) Percentage certified to other wood 
fiber standards
(5) Percentage by standard
In 2020, Trex used 547 million pounds of reclaimed 
wood fiber. See page 25 of our 2020 ESG Report for 
further detail on how Trex sources reclaimed wood.
Activity Metrics
CG-BF-000.A
Annual production
Not reported.
CG-BF-000.B
Area of manufacturing facilities
See page 22 of our 2020 Annual Report.

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About This 
Report
The content of this report is informed by the 
reporting requirements of the Sustainability 
Accounting Standards Board (SASB) standard 
for Building Products and Furnishings. SASB 
sets industry-specific sustainability disclosure 
standards focused on matters judged to be 
financially material to the company and relevant 
to investors. Please refer to our SASB Index for 
further information on Trex’s reporting related to 
SASB metrics. 
The report also highlights our performance 
and commitment to other ESG areas important 
to a broader range of stakeholders, including 
our employees and customers. We include 
information on how our business responded to 
the COVID-19 pandemic. 
Scope
Unless otherwise stated, all performance reporting 
covers our fiscal year 2020, from January 1 to 
December 31, 2020, and includes data for Trex 
Company, Inc. 
Forward-Looking Statements 
Certain disclosures in this report may be 
considered “forward-looking statements” within 
the meaning of Section 27A of the Securities 
Act of 1933 and Section 21E of the Securities 
Exchange Act of 1934. The cautionary statement 
at the start of the “Management Discussion 
and Analysis of Financial Condition and Results 
of Operation” section of our most recent 
Annual Report on Form 10-K should be read in 
conjunction with such statements.

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