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PW2033 22-0627

Installation & MaintenanceRequirements

IMPORTANT NOTE: PWT Treated is Laminated Veneer Lumber rated for exterior use (UC3B—
non-ground contact). PWT Treated LVL has a moisture content of 6-8% when it leaves thefactory. It is imperative that PWT Treated LVL remains protected from precipitation and highhumidity until it is installed. Once installed and flashed as stated in the installation guidelines,
it will remain dimensionally stable for many years to come.
pacificwoodtech.com/treatedPWT Treated LVL

Limited 25-Year Transferrable Warranty
Limited Warranty. Subject to the terms and conditions of this limited warranty, Pacific
Woodtech Corporation (“PWT”) warrants to the original purchaser or a permitted
transferee (the “Purchaser”) that, during the warranty period, and when used undernormal use and service conditions in connection with (1) above ground, interior orexterior LVL applications for permanent use in structures (residential, multifamily, orcommercial) in the United States of America or Canada, and/or (2) for the adequacyof design values as published by PWT, PWT Treated™ LVL framing components shallbe free from material defects in workmanship and materials and will not become
structurally unfit for the intended applications due to damage caused by termites or asa result of fungal rot, decay, or damage from wood destroying insects. The term of thislimited warranty shall be twenty-five (25) years from the date of original purchase forpermanent use in or attached to a house or other building structure.
With respect to a residential application, this warranty may be transferred within thewarranty period beginning from the date of original purchase by the original Purchaser,
to a subsequent buyer of the property upon which the PWT Treated™ LVL was originallyinstalled. Except as set forth in the preceding sentence, this limited warranty is provided
to the original purchaser only and is non-transferrable and may not be relied on and will
not inure to the benefit of, any other person, firm or entity.
Remedy. If any breach of this limited warranty occurs within the warranty period,
Purchaser shall notify PWT in writing and, upon confirmation by an authorized PWT
representative of the breach, PWT’s sole responsibility shall be, at its option, to either
replace the PWT Treated™ LVL which is materially defective or which has become
structurally unfit as a result of fungal rot, decay, or damage from wood destroying insects,
or refund the portion of the purchase price paid by Purchaser for such PWT Treated™ LVL(not including the cost of its initial installation).
PWT shall have the right to inspect, test and/or evaluate the warranty claim andPurchaser shall reasonably cooperate with PWT in connection with such inspection, testing
and/or evaluation. Purchaser further agrees to comply with any all processes and/or
procedures adopted by PWT with respect to evaluating, processing and/or responding towarranty claims. As a condition to evaluating, processing and/or responding to warranty
claims, PWT may further require that the Purchaser provide the first purchaser’s proof ofpurchase and/or pictures or samples of the PWT Treated™ LVL at issue.
To make a claim under this limited warranty, Purchaser, or a permitted transferee (asauthorized above), within the warranty period referred to above and within thirty (30)days of discovery of a breach, shall send to PWT picture(s), a description of the claimed
breach, and proof of purchase, to the following address:
Pacific Woodtech Corporation, Customer Relations
1850 Park Lane | Burlington, WA 98233-4630
E-mail: warranty@pacificwoodtech.com
Exclusions. Purchaser acknowledges and agrees that PWT does not warrant against
and is not responsible for any condition attributable to: (1) non-compliance with any
requirements published in the PWT Treated™ LVL guides (see PWT website for current
requirements) for handling, structural design specifications, installation and maintenance,
including the requirements listed in the following items 2 through 14 (2) defects caused
by improper installation or damage caused by improper fastener installation, including,but not limited to, ground contact; (3) use of PWT Treated™ LVL beyond normal use orservice conditions, or in an application not recommended by PWT’s guidelines and local
building codes; (4) damage caused by overloading of PWT Treated™ LVL members or
structural connectors and fasteners; (5) damage caused by failure to use appropriate
connectors and fasteners or as a result of the failure of connectors or fasteners due
to corrosion; (6) damage caused by factors other than environmental or atmosphericprocesses; (7) failure to strictly abide by PWT Treated™ LVL standard installation andmaintenance practices, including as described below; (8) movement, distortion, collapse,
settling of the ground, or other defects in the structure; (9) any act of God (such as
flooding, hurricane, earthquake, lightning, etc.); (10) improper handling, storage, abuseor neglect of PWT Treated™ LVL products by Purchaser, the permitted transferee or third
parties; (11) any alterations to the PWT Treated™ LVL after the original installation;(12) improper storage, installation, maintenance; (13) weathering of wood, including by
not limited to raised grain, minor localized edge checking, loose strands on the surface,
warping, shrinkage, swelling, other physical or aesthetic property of wood; or (14)ordinary wear and tear.
NO GROUND WATER OR WATER APPLICATIONS PERMITTED. PWT Treated™ LVL may
not be installed in contact with the ground and a clearance from debris buildup must
be maintained. PWT Treated™ LVL may not be installed under the surface or within thesplash zone of any body of water due to effects caused by constant saturation. Any such
installations shall void this limited warranty.
Fully exposed applications including, but not limited to, pergolas, trellis frames, benches,
fence components, and other applications that will not be protected by a deck or roof
structure and appropriate flashing details are not covered by this warranty.
TO THE FULLEST EXTENT PERMITTED UNDER THE LAW, THIS LIMITED WARRANTY SHALLNOT COVER AND PWT SHALL NOT BE RESPONSIBLE FOR COSTS AND EXPENSES INCURRED
WITH RESPECT TO THE REMOVAL OF ANY PWT PRODUCTS OR THE INSTALLATION OF
REPLACEMENT MATERIALS, INCLUDING BUT NOT LIMITED TO LABOR AND FREIGHT.
This limited warranty only applies to PWT Treated™ LVL that is protected, installed, used

and maintained in accordance with the PWT Treated™ LVL Installation and MaintenanceRequirements set forth below.
No person or entity is authorized by PWT to make and PWT shall not be bound by any
statement or representation as to the quality or performance of PWT Treated™ LVL otherthan as contained in this limited warranty. This limited warranty may not be altered oramended except in a written instrument signed by PWT and Purchaser.
PWT Treated™ LVL INSTALLATION AND MAINTENANCE REQUIREMENTS:
1. 	Observation and installation: During construction, inspect all components for damage
and improper installation required by code and required in the PWT Treated™ LVL
Installation Guide. Except for sill plates, stair stringers, and columns, the LVL must be
used for permanent construction applications only, above ground, at least 8 inches
above the ground and/or ground cover and/or ground vegetation and/or splash zone,
completely separated from concrete and other porous materials by using a barriermaterial impermeable to water in accordance with PWT’s Installation Guide. Sill plates
must be separated by a sill plate gasket in proper installations to avoid direct contact
with concrete and the ground. Columns and stair stringers must be installed with a
1" standoff or uplift post base to avoid direct contact with concrete and the ground.
2. 	Preventing trapped moisture: Fully enclosed exterior structures or assemblies mustallow for moisture to escape through proper ventilation. DO NOT wrap exterior PWTTreated™ LVL with materials that may trap moisture, such as wood, metal, or plastic
trim without proper ventilation and drainage. Refer to PWT’s Installation Guide forcladding details.
3. 	Flashing in exterior applications, including, but not limited to, deck substructures:Flashing or approved flashing tape is required on any upward horizontal surfaces of
the PWT Treated™ LVL. Flashing tape must have passed design standard AAMA 71113, Level 3, Class A, and have minimum UV protection of 90 days exposure - or beon PWT’s list of approved tapes. Deck drainage systems that cover upward horizontal
surfaces of PWT Treated™ LVL joists and beams, preventing wetting from occurring,are acceptable substitutions for flashing on the joists and beams. Proper flashing isrequired over ledger boards to meet code. Failure to use proper flashing, approved
flashing tape, and/or proper deck drainage systems will void the limited warranty.
Failure to apply flashing in accordance to the manufacturers’ written installation
instructions and as required by code will void the limited warranty.
4. 	Maintenance in exterior applications, including, but not limited to, deck substructures:
PWT Treated™ LVL must not be installed or become in contact with the ground inuse in a structure. Regular efforts must be made to remove debris buildup aroundwood members and metal connectors and fasteners. Mold fungi and mildew cause
discoloration of the wood surface, commonly appearing as a colored, fuzzy or powdery
surface growth that can quickly spread over surfaces with high moisture levels. Moldand mildew will not impact the strength or stiffness of a wood member, but thepresence of mold indicates a high moisture condition where, without preservative
treatment and proper maintenance, decay or deterioration would likely develop.
5. 	Proper connectors and fasteners: Appropriate connectors and fasteners must be
used for the conditions-of-use to avoid failure due to corrosion or overloading. In
all exterior applications or any other conditions where excess moisture is present,high quality, exterior grade, stainless steel or hot dipped galvanized or durable grade
fasteners are required.
6. 	Refer to the current published PWT Treated LVL guides for handling, structural design
specifications, installation and maintenance requirements available on the PWT website.
7. 	PWT Treated™ LVL that is used in a way that does not satisfy all the above
requirements is not covered by this limited warranty.
Disclaimers; Limitations of Liability. EXCEPT FOR THE REMEDIES SPECIFICALLY PROVIDED
IN THIS LIMITED WARRANTY, UNDER NO CIRCUMSTANCES SHALL PWT BE LIABLE FOR ANY
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL OR OTHER DAMAGES BECAUSE
OF THE FAILURE OF PWT TREATED™ LVL, OR FOR ANY CLAIMED DEFECT IN CONNECTION
THEREWITH, INCLUDING BUT NOT LIMITED TO ANY DAMAGES BECAUSE OF DAMAGE OR
HARM TO OR LOSS OF OTHER PROPERTY, LOSS OF TIME, LOSS OF USE, LOST PROFITS, LOSTREVENUE, LOST GOODWILL, BUSINESS INTERRUPTION, LABOR COSTS, MATERIAL COSTS,INVESTIGATION COSTS, TESTING COSTS, COSTS OF INSTALLATION OR REINSTALLATION,ATTORNEYS’ FEES, EXPERT FEES, PERSONAL INJURY (INCLUDING BUT NOT LIMITED TO
DEATH), DAMAGE TO REAL OR PERSONAL PROPERTY, TEMPORARY LIVING EXPENSES, AND
ANY AND ALL OTHER SIMILAR COSTS AND EXPENSES, WHETHER SUCH DAMAGES ARE
SOUGHT IN CONTRACT, IN TORT OR OTHERWISE. EXCEPT FOR THE SPECIFIC WARRANTY
COVERAGE SET FORTH IN THIS LIMITED WARRANTY, PWT DOES NOT MAKE, AND HEREBY
EXPRESSLY DISCLAIMS, ANY AND ALL REPRESENTATIONS OR WARRANTIES OF ANY KIND,
WHETHER EXPRESS OR IMPLIED, WITH REGARD TO PWT TREATED™ LVL, AND/OR THE
PERFORMANCE, APPLICATION OR USE THEREOF, AND ALL SUCH OTHER REPRESENTATIONS
AND WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY EXPRESSLYEXCLUDED AND DISCLAIMED.
Some States or Provinces do not allow the exclusion or limitation of incidental orconsequential damages, so the above limitation or exclusion may not apply to Purchaser.
This warranty gives Purchaser specific legal rights, and Purchaser may also have otherrights that vary from State to State or Province to Province.
page 1

Safety and Construction Precautions

Installation and Maintenance Requirements

These are general recommendations and in some cases, additional precautions may
be required.

Observation and installation:

Installation

Except for sill plates, stair stringers, ledgers and columns, the LVL must be used for permanent construction applications only,
above ground, at least 8 inches above the ground and/or ground cover and/or ground vegetation and/or splash zone,
completely separated from concrete and other porous materials by using a barrier material impermeable to water inaccordance with PWT's Installation Guide. Sill plates must be separated by a sill plate gasket in proper installations to avoid
direct contact with concrete and the ground. Ledger must be separated from concrete by sill gasket or self-adhering butyl or
rubberized-asphalt flashing. Columns and stair stringers must be installed with a 1" standoff or uplift post base to avoid directcontact with concrete and the ground.

• Walking on the joists should not be permitted until they are properly braced.
Do not allow workers to walk on
joists until joists are fully installed
and braced, or serious injuries
can result.

•	All hangers, rim boards, rim joists and blocking at the end supports of the joists must
be installed and nailed properly.
• During installation, a minimum of 1 x 4 temporary bracing is required.
•	Bracing members should be spaced at 8'– 0" o.c. and nailed to each joist with two 8d
nails (10d box nails if bracing thickness exceeds 1").
•	Lap bracing ends and anchor them to temporary or permanent sheathing or decking
nailed to the first 4' of joists at the end of the bay or a braced end wall.
•	The ends of cantilevers must be temporarily braced on both the top and bottom of joist.

Preventing trapped moisture:
Fully enclosed exterior structures or assemblies must allow for moisture to escape through proper ventilation.
DO NOT wrap exterior PWT Treated™ LVL with materials that may trap moisture, such as wood, metal, or plastic trim without
proper ventilation and drainage.

Flashing in exterior applications, including, but not limited to,
deck substructures:•	Never overload joists with loads that exceed design loads.
Never stack building materials
over unsheathed joists. Stack
only over joists or walls.

Before and during construction inspect all components for damage or improper installation.

• Only remove the bracing as the sheathing or decking is attached.

Flashing or approved flashing tape is required on any upward horizontal surfaces of the PWT Treated™ LVL. Flashing tapemust have passed design standard AAMA 711-13, Level 3, Class A; perform in high- and low-temperature extremes; and haveminimum UV protection of 90 days exposure.

•	When stacking construction material, stack only over beams or walls, NOT on
unsheathed or decked joists.

Storage Guidelines

Deck drainage systems or waterproof membranes that cover upward horizontal surfaces of PWT Treated™ LVL joists andbeams, and preventing wetting from occurring, are acceptable substitutions for flashing on the joists and beams.

Storage

Proper flashing is required over ledger boards to meet code. Failure to use proper flashing, approved flashing tape, and/or
proper deck drainage systems will void the warranty.

•	Store bundles with wood lying in flat orientation on a smooth, level, well-drained
and supportive surface.

Failure to apply flashing in accordance to the manufacturers’ written installation instructions and as required by code will void
the warranty. Product installed within a permanently covered structure does not require flashing.

• Bundles should not be in contact with the ground.
The following list of tapes qualify:•	Place 2x or LVL spacers (at a maximum of 10' apart) between bundles and theground and bundles stored on top of one another.

⁄L5

L

⁄L5

B undles should remain wrapped, strapped and protected from the weather
until time of installation.

Maintenance in exterior applications, including,but not limited to, deck substructures:
PWT Treated™ LVL must not be installed or become in contact with the ground in use in a structure.
Regular efforts must be made to remove debris buildup around wood members, metal connectors, and fasteners.
Mold fungi and mildew cause discoloration of the wood surface (commonly appearing as a colored, fuzzy, or powdery surface
growth) that can quickly spread over surfaces with high moisture levels.
Mold and mildew will not impact the strength or stiffness of a wood member, but the presence of mold indicates a highmoisture condition.
Excessive moisture content for long periods can cause damage to any exterior-use wood product.

Manufacturer

Product

Material TypeHuber

Zip Systems Flashing Tape

Acrylic

Nichigo

G-Tape 3040BK

Acrylic

Deckorators

Joist & Flashing Tape

Butyl

Henry

FortiFlash Joist Guard

Butyl

Imus Industries

Imus Seal

Butyl

NashuaWindow & Door Flashing Tape

Butyl

Tite-Seal

Deck Flash Barrier

Butyl

Trex

Trex Protect

ButylProtecto Wrap

Primer Free Deck Joist Tape

Synthetic Butyl With Slip-Resistant Surface

3M

3M All Weather Flashing Tape

Film

DeckWise

WiseWrap Joist Tape

Rubberized Asphalt

Grace

Vycor

Rubberized Asphalt

MFM

DeckWrap

Rubberized Asphalt

ResistoJoist Guard

SBS Modified Bitumen
page 2

PWT Treated LVL Stair Stringers

End Sealing Recommendations

Improved Performance

Since PWT Treated LVL is treated throughout the piece (no gradient), “retreatment” is not necessary.
However, it is recommended to recoat end cuts with a sealer or paint to minimize swelling,
as moisture will wick into end-grain fibers more quickly than edges and faces.

TABLE 2A. MAXIMUM STRINGER RUN
DRY USE — 40 PSF LIVE LOAD AND 12 PSF DEAD LOADTABLE 2B. MAXIMUM STRINGER RUN
DRY USE — 60 PSF LIVE LOAD AND 12 PSF DEAD LOAD

Tread Width

Tread Width

ANCHOR SEAL® is an example of product specifically designed for sealing end cuts.

2-ply 1½" x 11¼"
2-ply 1¾" x 11⅞"
2-ply 1¾" x 14"

Proper connectors and fasteners:
Appropriate connectors and fasteners must be used for the conditions-of-use to avoid failure due to corrosion or overloading.
In all exterior applications or any other conditions where excess moisture is present, high quality, exterior grade, stainlesssteel or hot dipped galvanized or durable grade fasteners are required.
PWT Treated™ LVL that is used in a way that does not satisfy all the above requirements is not covered by the PWT Treated™
LVL limited warranty.
SCREWSLVL Thickness
1½"
Minimum

LVL DepthAll

LVL Orientation

Edge

1¾"
Minimum

7¼"
Minimum

Edge

1½"
Minimum

All

Face

1¾"
MinimumAll

Face

Screw Size
#7#8#9
#10 SD Connector*#10 SD Connector#12LedgerLOK
0.25"*
0.27"*
⅜ x 4" Lag*
#8
#9
#10 SD Connector#12LedgerLOK
0.25"
0.27"*
⅜ x 4" Lag*

Notes:
1. Edge distance shall be sufficient to prevent splitting.
2.	Fastener sizes and closest on-center spacing not specifically describedabove are beyond the scope of this publication.

Shank Diameter
Minimum End[in]Distance [in]
0.128
0.5
0.130
0.75
0.134
1.75
0.169
0.75
#12 and larger sizes not recommended
0.169
3
0.175
3
0.230
3
0.250
3
0.270
3
0.375
3
0.130
0.75
0.134
1.75
0.169
2.5
0.175
2.5
predrilling recommended for larger sizes
0.230
2.5
0.250
2.5
0.276
2.5
0.375
3

Minimum Screw
Spacing [in]
1
1.5
3
2
3
3
3
3
3
3
2
3
5
4
3
2
3
4

Stringer Depth36"210'-10''12'-6''
14'-2''

42"
44"
Number of Stringers:
3
3
3
12'-6'' 11'-8'' 11'-8''14'-2'' 14'-2'' 13'-4''14'-2'' 14'-2'' 14'-2''48"
310'-10''13'-4''
14'-2''

36"

Stringer Depth
2-ply 1½" x 11¼"
2-ply 1¾" x 11⅞"
2-ply 1¾" x 14"29'-2''
10'-10''14'-2''

1½"
Minimum

LVL Depth

LVL Orientation

TABLE 2D. MAXIMUM STRINGER RUN
DRY USE — 60 PSF LIVE LOAD AND 12 PSF DEAD LOAD

Tread Width

Tread Width

Stringer Depth

36"

42"
44"
Number of Stringers:33
3
10'-0''
9'-2''
9'-2''
11'-8'' 10'-10'' 10'-10''
14'-2'' 14'-2'' 14'-2''

48"

2
3
1½" x 11¼"
8'-4''
9'-2''
1¾" x 11⅞"
10'-0''
10'-10''
1¾" x 14"14'-2''
14'-2''
Notes:
1.	Table values are based on a maximum step rise of 7¾'' and a minimum
step run of 10''.
2. Verify compliance with the local building code.
3.	Table values are limited by deflection equal to L/360 at live load or
L/240 at total load.
4. Stringer runs are based on 100% duration of load.
5.	For other design loads, stair constructions, or attachment details, consult
with the design professional.
6. Stringers are unstable until treads are installed.
7.	To minimize squeaks, install treads with panel adhesive in addition tonails or screws.

Stringer Depth
1½" x 11¼"
1¾" x 11⅞"
1¾" x 14"36"
2
7'-6''
9'-2''
12'-6''

7¼"
Minimum

Edge

All

Face

Nail Size

Notes:
1. 	Minimum fastener spacing values apply to a single row of nails driven
into the edge of LVL.
2. Edge distance shall be sufficient to prevent splitting
3. 	Fastener sizes and closest on-center spacing not specifically describedabove are beyond the scope of this publication.

42"
44"
Number of Stringers:
33
38'-4''
8'-4''
8'-4''
10'-0'' 10'-0''9'-2''
14'-2'' 13'-4'' 13'-4''48"
37'-6''
9'-2''
13'-4''

8.	Stringers shall be separated from concrete or masonry with
1" stand-off.
9.	If only cut stringers are used, a minimum of three stringers are required.
10. Stringer run refers to the horizontal projection of the stairs.
11.	Single ply stringers are acceptable; however, however, 3" minimum
stringer width is recommended. Use appropriate thickness based uponin-use exposure and climate.
12. Minimum throat depth 5".
13.	Cut stringers must be in accordance with the details in this guide.
Pay careful attention to avoid overcutting.

Laying out the bottom of a stair stringer with building hardware
Installation recommendations:
1.	Place the finished stair stringer into its proper position, without nailing it (this may require two or more people or in some cases, a crane, to lift the heavy objects).
2.	Place the hardware or base plate below the stringer and mark its exact location.
3.	Remove the stair stringer and fasten the base plate securely to the concrete foundation.
4. Install stair stringer.

Avoid
overcutting*predrilling required

8d & smaller
10d & 12d
16d
12d & smaller
16d

310'-0''
11'-8''
14'-2''TABLE 2C. MAXIMUM STRINGER RUN
DRY USE — 40 PSF LIVE LOAD AND 12 PSF DEAD LOADNAILS
LVL Thickness

48"

Code Minimums

3. Assumes self-tapping heads.

Nail Diameter
[in]
0.131
0.148
0.162
0.148
0.162

42"
44"
Number of Stringers:3
3
3
10'-10'' 10'-0'' 10'-0''12'-6'' 12'-6'' 11'-8''14'-2'' 14'-2'' 14'-2''Minimum End
Distance [in]
2.5
3.5
3.5
1.5
1.5

Minimum Nail
Spacing [in]
3
4
5
3
5

4. 	Tabulated closest on-center spacing for face orientation is applicableto nails that are installed in rows parallel to the grain (length) of
the LVL. For nails installed in rows perpendicular to the direction ofgrain (width/depth) of the LVL, the closest on-center spacing for faceorientation shall be sufficient to prevent splitting of the LVL.

t

roa

Th
Run
1" min.
offsetrequired

Rise

Span
Note: A raised base plate will inhibit moisture in theconcrete slab (or surrounding area) from absorbing
into and eventually destroying the wooden stringer.

Stringer Run
page 3

FIGURE 1. Joist-to-Beam Detail
Option 1
Mechanicalfastener or
hurricaneclip

FIGURE 3. Ledger Board Fastener Spacing and Clearances
Option 2
Top of beamor ledger andjoist—sameelevation

Joist
hanger2" min.

Stagger
fasteners in
two rows
or moreOption 3(not recommended)5" max.

2" min.
2" min.

Lag screw, through-bolt,
or anchor with washer

FIGURE 2B. Post-to-Beam Attachment(not recommended)

FIGURE 4. Guard Post to Outside — Joist/Rim Board Example — Recommended Attachment
SectionN Flashing tape2" min.

• Predrill all through-bolts and lags
• Predrill all holes within 2" of edge/end• Fasteners: use approved throughbolts, anchors, lags (quantity and diameter) as required per code

Place blocking over beams when joists are cantilevered or as required by design

FIGURE 2A. Approved Post-to Beam
Post Cap Attachment

LedgerSolid-sawn or
multiple-ply beam

Guard Posts may belocated on either sideof the outside joist

Guard Post

{NOTCHING OF PWT TREATED LVL
COLUMNS IS NOT RECOMMENDED}

At first interior bay, provide 2x
blocking at guard posts with holddown anchors; attach blocking percode at top and bottom, each side.

Two through-bolts
and washers per code

Post

Typical post

At splice

General Notes:• It is the responsibility of the designer to provide hardware and fastener installation requirements.
• See Deck Construction Guide at awc.org for helpful installation information.
• Be sure to review this guide carefully for recommended attachments and fastener requirements specific to PWT Treated LVL.

Outside joist—min. 2x8

Plan View
At first interior bay,provide 2x blocking at
guard posts with holddown anchors; attach
blocking per code at top
and bottom, each side.

Guard post

Outside joist—min. 2x8
page 4

FIGURE 5. Post Installation — Top Mount

FIGURE 6. Cladding Flashing tape required to meet PWT installation and warranty guidelines.

Cladding on Beams

Install two 2x8-inch (min.) cross-bracing frames in between joists at a 7¼-inch distance.
A total of 12, 3-inch screws must be attached.

Cladding
PWT Treated™ beam

65%

Cross-bracing
frame

7¼"

Cross-bracing
frame
Minimum⅜" treated- or decayresistant furring.
Follow manufacturer’s
instructions for proper
installation.

Vented cladding
at bottom

Install two 2x8-inch blocking boards under post location.
A total of 24, 3-inch screws must be attached.

Do not wrap PWT Treated withmoisture-trapping materials, such as
plastic, wood, or metal that does notallow for ventilation and drainage.

Cladding on Columns

Cladding
For proper
ventilationand drainage,
maintain gap
at bottom

LVL Hole Details
HOLES IN LVL BEAMSBlocking boards
See note 4⅓ Depth⅓ Depth⅓ Depth¼ SpanUsing the post as a template, mark hole locations and drill throughdecking and blocking boards.

⅓ SpanEnd support

Interior support

Notes:
1.	This detail applies only to uniformly loaded, simple and multiple span beams. Cantilevered beams and beams that carry concentrated loads are outside
the scope of this detail.
2. Square and rectangular holes are not permitted.
3.	Round holes may be drilled or cut with a hole saw anywhere within the shaded area of the beam.
4.	The horizontal distance between adjacent holes must be at least two times the size of the larger hole. This restriction also applies to the location of accessholes relative to bolt holes in multi-ply beams.
5.	Do not drill more than three access holes in any four foot long section of beam.
6. The maximum round hole diameter permitted is:

LVL Beam Depth
Maximum Hole Diameter
Note: All lags must follow recommendations per Table 1.
It is the responsibility of the designer to verify/provide all fastener information.
Details in figures are recommendations that should be verified.

5½"
1⅛"

7¼"
1½"

9½" to 24"
2"

7.	These limitations apply to holes drilled for plumbing or wiring access only. The size and location of holes drilled for fasteners are governed by theprovisions of the National Design Specification® for Wood Construction.
8.	Beams deflect under load. Size holes to provide clearance where required.

page 5PWT Treated Multiple-Ply Beam Assembly

All fasteners and carrying hardware must be exterior type and code accepted. See strongtie.com/deckcenter for more information.

Combinations of 1¾" Plies
NAILS

STRONG-DRIVE® SDWS TIMBER SCREWS

3-Ply

2-Ply

2-Ply

4-Ply

3-Ply
6" min. end
distance

Nail Spacing

4-Ply

8" min. between
fasteners
17⁄16" min. edge distance⅝" min.
betweenstaggeredrows

⅝" min. stagger

4" min.
betweennon-staggeredrows

Spacing Requirements

ALLOWABLE UNIFORM SIDE LOAD (PLF)
2-Ply (2–1¾")
3-Ply (3–1¾")
4-Ply (4–1¾")

ALLOWABLE UNIFORM LOAD APPLIED TO EITHER OUTSIDE MEMBER (PLF)

3¼" x 0.131" Nails
16d Common Nails 3½" x 0.162"
2 Rows at 12" o.c.
3 Rows at 12" o.c.
2 Rows at 12" o.c.
3 Rows at 12" o.c.
390
585
565
845
290
435
425
635
Use bolts for this condition (see note 1).

Notes:
1.	Minimum fastener schedule for smaller side loads and top-loaded beams:
2-ply and 3-ply beams 12" deep or less: 2 rows 3¼" x 0.131" at 12" o.c.
2-ply and 3-ply beams deeper than 12": 3 rows 3¼" x 0.131" at 12" o.c.
4-ply, all beam depths 2 rows ½" bolts at 24" o.c.
2.	The table values for nails may be doubled for 6" o.c. and tripled for 4"o.c. nail spacings.
3.	The nail schedules shown apply to both sides of a three-ply beam.
4.	The table values apply to bolts meeting the requirements of ANSI/ASME
Standard B18.2.1. A standard cut washer, or metal plate or strap of equal	or greater dimensions, shall be provided between the wood and the bolt
head, and between the wood and the nut. The distance from the edgeof the beam to the bolt holes must be at least 2" for ½" bolts. Bolt holes
shall be the same diameter as the bolt.
5. 7" wide beams must be loaded from both sides and/or top-loaded.
6. Beams wider than 7" must be designed by the engineer of record.
7. Load duration factors may be applied to the table values.
8.	For proprietary fastener alternatives, consult the manufacturer's
literature.

How to Use the Maximum Uniform
Side Load Table
EXAMPLE: THREE 1¾" PLIES LOADED FROM BOTH SIDES AND ABOVE (COND. B)
1.	Use allowable load tables or sizing software to size the beam to carry a total load of(300 + 610 + 550) = 1460 plf.
2.	Refer to the Condition B row in the table. Scan across the row from left to right for a table value
greater than 550 plf, which is the greatest side load carried by the beam. The fourth value in the row
indicates that 3 rows of 16d common nails at 12" o.c. will accommodate a side load of 635 plf whichis greater than the 550 plf required. Use 3 rows of 16d common nails at 12" o.c., from both sides, toassemble the beam.

2-ply
3-ply
3-ply
4-ply

NominalScrew
Length [in]
3½
3½
5
6

610 plf

300 plf		

550 plf

Structural Composite Lumber
SDWS Timber Screws @ 16" o.c.
2 Rows3 Rows
765
1148
574
861
911
1367
810
1215

SDWS Timber Screws @ 24" o.c.
2 Rows3 Rows
510
765
383
574
608
911
540
810

Notes:
1. Each ply is assumed to carry load in proportion to its width.
2. Loads may be applied to either the head side and/or point side concurrently.
3. Tables are based on Simpson Strong-Tie Fastening Systems Catalog C-F-2019TECHSUP.
4. Please consult strongtie.com for the latest fastener details and data.

Installation

SCREW DATA
Model No.

		SDWS Timber Screws @ 12" o.c.
2 Rows3 Rows
1020
1530
765
1148
1215
1823
1080
1620

SDWS22312DBB
SDWS22500DB
SDWS22600DB

Nominal Screw
Length [in]3½
5
6

Thread Length [in]22¾2¾Notes:
1.	The SDWS TIMBER screws listed are coated with double-barrier
coating that provides corrosion resistance equivalent to hot-dip
galvanization, making them suitable for certain exterior andpreservative-treated wood applications as described in theevaluation report.

•	SDWS TIMBER screws install best with a low speed ½" drill
and a T-40 6-lobe bit. The matched bit included with thescrews is recommended for best results.
•	Screw heads that are countersunk flush to the wood surface
are acceptable if the screw has not spun out.
•	Individual screw locations may be adjusted up to 3" to avoid
conflicts with other hardware or to avoid lumber defects.

To review the PWT Treated User Guide, please visit
pacificwoodtech.com/treated.
page 6

Common Deck Connectors

DETAIL B. LUS Joist Hangers
1" for 2x's 11/16"
for 3x's and 4x's

General Notes

Installation:• LUS hangers install with double shear nailing.
• 	For installations into single 2x headers orledgers, use the specified full length fasteners
into the joist and the following fasteners into
the header for reduced loads in accordancewith connector manufacturer.
•• 	10dx1½ nails for installations with Nails•• 	SD #9x1½ for LUS28Z and LUS210Z
installations with SD Screws•• 	SD #10x1½ for LUS26-2Z and LUS210-2Z
installations with SD Screws

PWT Treated is non-corrosive; choose the appropriate coating (Exterior grade, Z-max, HDG, Stainless) on connectors
and hardware for the use of the project.
1. A ll connectors and fastener information presented in this document is for ease of reference only; consult current connector guides for
all installation instructions and details.
2. Self-tapping screws are the preferred fasteners when allowed by connector manufacturer.
3. It is the responsibility of the designer or builder to select proper installation details, connectors, and fasteners for a project.

DETAIL A. Fasteners

H

B

W

SDS Screw
SD Screw
SD Screw
SD Screw
SD Screw¼" x various#9x2½ 8d #10x1½#9x1½
lengths
16d
10d #10x2½
Common Common
16dx2½
Common10dx1½8dx1½

Typical LUS28Z
Installation

LUS

0

Dimensions (in.)

Model No.

0.161"

0.161"

0.162"

0.131"

0.148"

0.131"

W
19⁄16
19⁄16
19⁄16
3⅛
3⅛

 LUS26Z
 LUS28Z
 LUS210Z
 LUS26-2Z
 LUS210-2Z

0.131"

H
4¾
6⅝713⁄16
4⅞
9

B
1¾
1¾
1¾
2
2

Nails
Header
4-10d
6-10d
8-10d
4-16d
8-16d

1.  indicates connector is available in stainless steel. Replace Z in model number with SS when ordering.
2. Refer to current Wood Construction Connectors catalog for additional information.

0.131"

30.25"

0.148"
0.162"

Fastener Notes:
1.	The specified quantity: type and size of fastener must be installed in the correct holes on the connector to achieve publishedloads. Incorrect fastener selection or installation can compromise connector performance and could lead to failure.
2.	Nail diameter assumes no coating. See technical bulletin T-NAILGUIDE for more information.
3. NAIL reference in tables: 16d = 16d common, 10d = 10d common

DETAIL C. LUC, HUC Joist Hangers

Installation:• 	For HUC installations, models have triangle andround holes. To achieve maximum loads, fill bothround and triangle holes (fastener quantities listed
fill both holes).
• 	For installations into single 2x headers or ledgers,
use the specified full length fasteners into thejoist and the following fasteners into the header
for reduced loads in accordance with connector
manufacturer:• 10dx1½ nails for installations with Nails•	SD #9x1½ for LUC26Z and LUC210Z installations
with SD Screws

H

Fastening Identification

W

Round Holes Purpose:to fasten a connector.
Fill requirements:
always fill, unless noted
otherwise.

Speed Prongs Used totemporarily positionand secure theconnector for easier andfaster installation.

Obound Holes
Purpose: to makefastening a connector ina tight location easier.
Fill requirements:
always fill.

Fasteners
SD Screws (preferred)
Joist
Header
Joist
4-10d
4-10d
6-SD #9x2½ 4-SD #9x2½
4-10d
8-SD #9x2½ 4-SD #9x2½
4-16d
4-SD #10x2½ 4-SD #10x2½
6-16d
8-SD #10x2½ 6-SD #10x2½

Hexagonal Holes Purpose:to fasten a connector toconcrete or masonry.
Fill requirements: always
fill when fastening aconnector to concrete or
masonry.

Dome Nailing This feature
guides the nail into thejoist and header at a 45°
angle.

Triangular Holes Purpose:to increase a connector's
strength or to achieve Max
strength.
Fill requirements: when
the designer specifies Max
nailing.

Double Shear Nailing The nailis installed in the joist andheader, distributing the load
through two points on eachjoist nail for greater strength.

Diamond Holes Purpose:to temporarily fasten
a connector to makeinstalling easier.
Fill requirements: none.

Pilot Holes Toolingholes for manufacturing
purposes. No fasteners
required.

Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

B

LUC

Model No.
 LUC26Z
 LUC210Z
HUC26-2Z
 HUC28-2Z
 HUC210-2Z

Typical HUC Installation(LUC Similar)
Dimensions (in.)
W
19⁄16
19⁄16
3⅛
3⅛
3⅛

H
4¾
7¾
5⅜
7
813⁄16

B
1¾
1¾
2½
2½
2½

Nails
Header6-10d
10-10d12-16d14-16d18-16dFasteners
SD Screws (preferred)
Joist
HeaderJoist
4-10dx1½
6-SD #9x2½ 4-SD #9x1½
6-10dx1½ 10-SD #9x2½ 6-SD #9x1½
6-10d
6-10d
10-10d
-1.  indicates connector is available in stainless steel. Replace Z in model number with SS when ordering.
2. Refer to current Wood Construction Connectors catalog for additional information.

page 7

DETAIL D. SUR/SUL 45° Skewed Joist Hangers

DETAIL E. LS Framing Angles
Installation:• 	The joist may be square cut
or bevel cut• 	These hangers will
normally accommodate a
40° to 50° skew.

A

A

H

Adjustablefrom 0° to 135°
Bend onetime only.
Shippedat 45°L

LS
B

W

Model No.

Installation:• 	Field skewable; bend one time only.
• 	Joist must be constrained against rotation (for example, withsolid blocking) when using a single LS per connection.

Typical SUR
Installation

SUL Skewed Left Hanger(SUR is Skewed Right)

Joist Size

SUR/L26Z
2x6, 8
SUR/L210Z
2x10, 12
SUR/L210-2Z (2) 2x10, 12

W
19⁄16
19⁄16
3⅛

Dimensions (in.)
H
B
A1
5
2
1⅛
8⅛
2
1⅛
811⁄16
2⅝
17⁄16

A2
15⁄16
15⁄16
2⅜

Fasteners
HeaderJoist
6-16d
6-10dx1½
10-16d10-10dx1½
14-16d6-16dx2½

Model No.
L (in)
Fasteners
LS30Z
3⅜
6-10d
 LS50Z
4⅞
8-10d
LS70Z
6⅜
10-10d
1.  indicates connector is available in stainless steel. Replace Z in model number with SS when ordering.
2. R efer to current Wood Construction Connectors catalog for additional information.

1. Refer to current Wood Construction Connectors catalog for additional information.

DETAIL F. LSU, LSSU or LSSJ Adjustable Joist Hangers

DETAIL G. ABA, ABU Post Bases

W

A

Typical LS50Z
Installation

LS Top View

Washer Required–Not SuppliedH

LSSU210ZHLSSJ210LZ“A” Flanges

Installation:• 	See manufacturer's guide for
installation instructionsW

ABA44ZL

ABU44Z

Typical ABA Installation(ABU Similar)

31 2"

Slope to
45° up or down.

Model No.
LSU26Z
LSSU210Z

W
19⁄16
19⁄16

Dimensions (in.)
H
4⅞
8½

A
1½
1⅝

Fasteners
HeaderJoist
6-10d
5-10dx1½10-10d7-10dx1½

1.For skewed LSSU, the inner most face fasteners on the acute angle side are not installed.
2. Refer to current Wood Construction Connectors catalog for additional information.

Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

Dimensions (in.)

Model
No.

Post
Size

W

L

H

ABA44ZABU44ZABA46ZABU46ZABA66ZABU66ZABU88Z

4x4
4x4
4x6
4x6
6x6
6x6
8x8

39⁄16
39⁄16
39⁄16
39⁄16
5½
5½
7½

3⅛
3
53⁄16
5
5¼
5
7

31⁄16
5½
3⅛
7
3⅛
61⁄16
7

HB

Anchor
Dia.

Nails

1¾
2⅝
1¾
-

½
⅝
⅝
⅝
⅝
⅝
2⅝

6-10d
12-16d8-16d12-16d8-16d12-16d18-16dPost Fasteners
SD Screws Machine Bolts(preferred) Qty. Dia.
6-SD #9x1½
12-SD #10x1½ 2½
8-SD #10x1½2½
8-SD #10x1½
2½-

1. R efer to current Wood Construction Connectors catalog for additional information.

page 8

DETAIL H. PBS Post Bases

DETAIL I. CBSQ Post BasesH

2" Min.
Sidecover

W

L

HB

Installation:• 	Embed into wet concrete up to
the bottom of the 1" standoff
baseplate. A 2" minimum side
cover is required to obtain thefull load. Holes in the bottomof the straps allow for freeconcrete flow.
•	Allow concrete to cure before
installation of the post.

W1

L

H

PBS44AHDG 39⁄16
PBS66HDG 5½

3½
5⅜

6¼
6½

3" Min.
Sidecover

1"

W2

BCS
(BC Similar)

D

Post Fasteners

W

H

W2

Typical CBSQ44
Installation

Typical CBSQ

Dimensions(in.)

Model No.

Machine Bolts
SD Screws(preferred)
Qty. Dia.
37⁄16 14-16d 14-SD #10x1½2½
311⁄16 14-16d
2
½
HB

Post
Size

Dimensions (in.)
W1

W2

D

H

Number of
SD Screws(preferred)
14-SDS ¼"x2"
14-SDS ¼"x2"
14-SDS ¼"x2"12-SDS ¼"x2"12-SDS ¼"x2"

 CBSQ44-SDS2HDG
4x4
39⁄16
3½
7⅛
8⅜
 CBSQ46-SDS2HDG
4x6
39⁄16
55⁄16
713⁄16 811⁄16
 CBSQ66-SDS2HDG
6x6
5½
5½
6⅞
8¾
CBSQ86-SDS2HDG
6x8
7½
5⅜
6⅛
811⁄16
CBSQ88-SDS2HDG
8x8
7½
7⅜
6⅛
811⁄16
1.  indicates connector is available in stainless steel. Replace - SDS2HDG in model number withNails

1. Refer to current Wood Construction Connectors catalog for additional information.

SS when ordering.
2. Refer to current Wood Construction Connectors catalog for additional information.

DETAIL K. AC, LPC, LCE Post Caps
Installation:• Install in pairs.
• For LCE4Z installations
on mitered cornerconditions, consult
connector guide.

L
21 2"

3"
21 4"
21 2"
W

AC

LPCZ

Typical LCE4Z
Installation

Dimensions (in.)

AC4Z
AC6Z
LPC4Z
LPC6Z
LCE4Z

Dimensions (in.)

Fasteners
SD Screws
Nails
Model No.
(preferred)
W1 W2 L1 L2 H1 H2
Beam
Post
Beam
Post
Flange Flange Flange Flange
6-SD
6-SD
 BC4Z
39⁄16 39⁄16 2⅞ 2⅞ 3 3 6-16d 6-16d #10x1½#10x1½
 BC6Z5½ 5½ 4⅜ 4⅜ 3⅜ 3⅜ 12-16d 12-16d
8-SD
6-SD
 BCS2-2/4Z 3⅛ 39⁄16 2⅞ 2⅞ 215⁄16 215⁄16 8-10d 6-10d#9x2½ #9x2½
BCS2-3/6Z 4⅝ 59⁄16 4⅜ 2⅞ 35⁄16 215⁄16 12-16d 6-16d
1.  indicates connector is available in stainless steel. Replace Z in model number with SS whenordering.
2. Refer to current Wood Construction Connectors catalog for additional information.

Model No.4

PC4Z

W (in)

39⁄16

Fasteners 2,3
Beam
Post
(10) 10d(8) 10d

11 4"

11 2"

Model No.

Typical BCS Installation(BC Similar)

DETAIL L. PC, EPC Post Caps

L

W

Installation:•	BCS: Install dome
nails on beam;
drive nails at anangle through thebeam into the post
below.
•	BC: Do not installbolts into pilot
holes.

W1

Typical PBS

Model No.

DETAIL J. BC, BCS Post Caps

W

L

39⁄16
5½
39⁄16
59⁄16
-

6½
8½
3½
5½
5⅜

Fasteners
Nails
Beam
14-16d14-16d8-10d
8-10d
14-16dPost
14-16d14-16d8-10d
8-10d
10-16dSD Screws (preferred)
Beam
Post
14-SD #10x1½ 14-SD #10x1½
14-SD #10x1½ 14-SD #10x1½
8-SD #9x1½
8-SD #9x1½
14-SD #10x1½ 10-SD #10x1½

1. Refer to current Wood Construction Connectors catalog for additional information.

Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

PC6Z

5½

(10) 10d(8) 10dPC8Z7½(10) 10d(8) 10d7"

Post Size(2) 2x41
4x4
4x6
4x8
4x6
6x6
6x8
4x8
6x8
8x8

w
3"

15 8"

w
5

2 8"

Post flange
PCZ

Pilot holes for
manufacturing
purposes (Do notinstall bolts)(typ.)

1. 	Post and beam may consist of multiple members provided they areconnected independently of the post cap fasteners.
2. 	10d x 2½" (0.148" dia. x 2½" long) nails may be used with no load
reduction for uplift and 0.85 of the table loads for lateral.
3. 	Strong-Drive® SD9 x 1½" connector screws may be substituted fortable fasteners with no load reduction and are the preferred fastener.
4. 	Models available for rough size lumber, specify RZ suffix. Ex. PC4RZ.

Installation:• 	For end condition, specify EPC• 	Use all specified fasteners.
• 	Do not install bolts into pilot holes.

Typical EPCZ End Post
Cap Installation

page 9DETAIL N. CC, ECC Post Caps

DETAIL M. CCQ, ECCQ Post Caps
W1

L

Installation:•	For end conditions, specify ECCQ•	Install SDS ¼" x 2½" screws, which are provided
with the column cap, with a ⅜" hex head driver.
SDS screws install best with a low-speed, ½" drill.
• Beam depth must be a minimum 7".

H

Model No.

CCQ

W1

Dimensions (in.)
L1
W2
CCQ ECCQ
5½
11
8½
3⅝
11
8½
5½
11
8½
7½
11
8½
5½
11
8½
7½
11
8½

H

No. of SDS¼" x 2½" Screws
Beam
Post
16
14
16
14
16
14
16
14
16
14
16
14

H1

CC

3”

W2

ECC
Typical CC
Installation”
2½

Installation:• For end conditions, specify ECC• Bolt holes shall be a minimum 1⁄32" to a maximum 1⁄16" larger than the bolt diameter.
• Contact engineered wood manufacturers for connectors that are not through the wide face.
• Beam depth must be at least as tall as H1.

Typical CCQ
Installation

 CCQ3-6HDG
3⅛
3¼
7
 CCQ44HDG
4x3⅝
7 CCQ46HDG
4x3⅝
7 CCQ48HDG
4x3⅝
7 CCQ66HDG
6x5½
7
CCQ68HDG
6x5½
7
1.  indicates connector is available in stainless steel. Replace HDG in model number with SS

1¼”

4”

ECCQ
Beam
Width

1¼” 1¼
”
H1

1½”

W2

L

L

W1

1 ¼”
3”

Model No.

Beam
Width

W1

Dimensions (in.)
L
W2
CC
ECC
3⅝
11
7½
5½
11
7½
3⅝
7
5½
5½
11
7½

H1

Dia.

Machine Bolts
Beam
CC
ECC
4
2
4
2
2
1
4
2

 CC3-1/4-4HDG 3⅛
3¼
6½
⅝ CC3-1/4-6HDG 3⅛
3¼
6½
⅝ CC44HDG
4x3⅝
4⅝ CC66HDG
6x
5½
6½
⅝
1.  indicates connector is available in stainless steel. Replace HDG in model number with SS when ordering.

when ordering.
2. Refer to current Wood Construction Connectors catalog for additional information.

Post
2
2
2
2

2. Refer to current Wood Construction Connectors catalog for additional information.

DETAIL P. LSC Stair Stringer Connector

DETAIL O. Hurricane Ties
H1Z

Deck Framing
Stair Stringer¾”

19⁄16”

6¾

H2.5Z
2¾”

1 11⁄1

1 ½”

Typical H1Z and
H2.5Z Installation

SI
P
StrM
ongSON
-Tie
®

2 ½”

5¼
”

H1Z

Installation:•	Use all specified fasteners.
Fasteners
Model No.
H1Z
H2.5Z
H8Z

Nails
To Joist
6-8dx1½
5-8dx1½
5-10dx1½

To Beam
4-8dx1½
5-8dx1½
5-10dx1½

SD Screws (preferred)
To Joist
To Beam
6-SD #9x1½
4-SD #9x1½
5-SD #9x1½
5-SD #9x1½
5-SD #9x1½
5-SD #9x1½

1. Refer to current Wood Construction Connectors catalog for additional information.

1½

LSCZ

”

6”

”

LSCZ

Typical LSCZ
Installation

Installation:• Before fastening, position the stair stringer with the LSCZ on the carrying member to verify where the bend
should be located.
• Tabs on the LSCZ must be positioned to the inside of the stairs.
• The fastener that is installed into the bottom edge of the stringer must go into the second-to-last hole.
• A minimum distance of ¾" measured from the lowest rim-joist fastener to the edge of rim joist is required.

Model No.

Fasteners
Nails
SD Screws (preferred)
Wide Stringer
Stringer Wide Stringer
Rim Joist Stringer
Rim
Joist
Face
Narrow Face
Face
Narrow Face
8-10dx1½
8-10dx1½
1-10dx1½ 8-SD #9x1½ 8-SD #9x1½ 1-SD #9x1½

 LSCZ
1.  indicates connector is available in stainless steel. Replace Z in model number with SS when ordering. Stainless steel
models must be fastened with nails.
2. Refer to current Wood Construction Connectors catalog for additional information.

Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

page 10

DETAIL Q. TA Tread Angle

DETAIL R. SDS Screws
8¼"
P.
1½" TYTA9Z
(TA10Z length = 10¼")

TA10Z Inverted
Installation
On-center spacingof SDS wood screws
per designer

Installation:• Use all specified fasteners.
• 	For double 2x6 treads, install TA10Z inverted with 4 screws installed into
the treads.

SDS Ledger Installation

Size (in.)

Fasteners

Model No.

Stringer
3-SDS ¼"x1½"
3-SDS ¼"x1½"
4-SDS ¼"x1½"

See PWT Treatedguide for min. end
and edge distances.

Thread2-SDS ¼"x1½"
4-SDS ¼"x1½"
3-SDS ¼"x1½"

Thread Length
(in.)
2¼
2¾

Model No.

 ¼" x 3½"
SDS25312¼" x 5"
SDS25500
1.  indicates connector is available in stainless steel. Add SS to TA9Z TA10Z TA10Z
1.  indicates connector is available in stainless steel. Replace Z in model number with SS when ordering.

model number when ordering.
2. T he screws shall be staggered from the top to the bottom along
the horizontal run of the deck ledger per building code.

2. Refer to current Wood Construction Connectors catalog for additional information.

SDS Screw
Installation:• 	SDS screws install best with a low-speed ½"
drill.

Predrilling recommended in 1.5" thick material.

DETAIL S. DTT2Z Deck Tension Tie
3¼”

Installation:• 	Install Simpson Strong-Tie SDS woodscrews with a ⅜" hex head driver. SDS
screws install best with a low-speed,
high-torque drill.
• 	A standard cut washer (provided) must
be installed between the nut and theDTT2Z seat.
• 	Bolt holes shall be a minimum 1⁄32" toa maximum 1⁄16" larger than the bolt
diameter.

Post

2″

6 15⁄16”

Floor sheathing
nailed at 6" max. on
center to joist withhold downContinuous flashing (percode), not shown

2″

2″
1⅝”

LC

DTT2Z

CL

DTT2

Decking(typ.)

1⅝”

Model No.

½" diameter
HDG threaded
rod with nuts
and washers

Anchor Dia.

Fasteners

 DTT2Z
13⁄16½"
8-SDS ¼"x1½"
1.  indicates connector is available in stainless steel. Replace Z in model number with SS whenordering.
2. Refer to T-GRDRLPST and T-DECKLATLOAD for additional information.

Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

½" diametermachine bolts orthreaded rods withnuts and washers

Rim
Joist

Joist

DTT2Z Installed as a Lateral Connector for a
Deck Guardrail Post.
For more information on guardrail post connections,and installation instructions, see technical bulletin
T-GRDRLPST (available at www.strongtie.com).

Floor joist(solid 2x joist or
2x blocking)

Deck
joist

DTT2

DTT2Z Installed as a Lateral Connector for a
Deck-to-House Lateral Load Connection.
For more information on this connection, and installation
instructions, see technical bulletin T-DECKLATLOAD (availableat www.strongtie.com).

Predrilling recommended in 1.5" thick material.

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DETAIL T. SDWS Screws
Installation:• 	Installs best with a low-speed ½" drill anda T-40 6-lobe bit. The matched bit included
with the screws is recommended for best
results.
• 	Predrilling is typically not required. Where
predrilling is necessary, use a 5⁄32" drill bit.
• 	SDWS Timber screws are driven such thatscrew heads that are countersunk flush to
the wood surface are acceptable if the screw
has not spun out.

Exterior cladding andflashing not shownfor clarity

Ledger screw
spacing per designer
or installer

Wood sheathing per building code

0.75"

Identification on
all Strong-Drive
SDWS Timberscrew heads

Rim board per table

Floor joist
or blocking

SDWS wood screws stagger verticallyspaced in accordance with table

0.220"

L

2x deck ledger shown (double 2x
ledger similar)
Size (in.)

Model No.

¼" x 4"¼" x 5"

SDWS22400DB
SDWS22500DB

Thread Length
(in.)
2⅜
2¾

TL

Ledger-to-Rim Board Assembly

Strong-Drive® SDWS Timber(Wood-framed lower floor acceptable, concrete wall shownfor illustration purposes)

1. Refer to current Wood Construction Connectors catalog foradditional information.

DETAIL U. DTT1Z Deck Tension Tie

DETAIL V. KBS1Z Knee-Brace Stabilizer

Installation:• 	Use all specified fasteners•	Strong-Drive SD Connector screws installwith a ¼" hex head driver (Model DBHEX)• 	Strong-Drive SDWH Timber-Hex HDG screws
install with a ⅜" hex head driver (Model
DB6H1.75)

Installation:• 	Use all specified
fasteners.
• 	For installation
at an angle
other than 45°,
bend KBS1Z
along slots todesired angle.
Bend one timeonly.

6-SD #9x1½" screws(shown) or
8-10dx1½" nails

Model No.

CL

Anchor Dia.

Fasteners

DTT1Z

¾"

⅜" or SDWH

6-SD #9x1½"

1. A ⅜" HDG round washer is required when using a lag screw.
2. Refer to current Wood Construction Connectors catalog, and
T-DECKLATLOAD for additional information.

⅜" HDG lag screw
with HDG washer or
SDWH Timber-Hex
HDG screw (shown)
into top plate, studs,or headerl
LateraW
W

L

Uplift
F1

L

KBS1Z

DTT1Z

Post-to-Knee Brace
Connection

3" min. thread
penetration
Model No.
Typical DTT1Z Deck-to-House
Lateral Load Connection

KBS1Z

Type ofConnection
Detail 1
Detail 2

Connectors per
Joist
2
1

Post-to-2x Knee Brace
Connection

Fasteners Each
Connector
12-8d
12-8dx1½"

1. Refer to current Wood Construction Connectors catalog for spacing and additional information.
Information on this page provided for reference only; see current connector guide for installation recommendations, details, and guidelines.

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