Solid Linear Wood

Innovative products
make innovative projects.

Above : Abingdon Sports Centre, Abbington, United Kingdom
Architect : Buttress, Fuller, Alsop, Williams
Product : Linear open system 15 x 92 mm
Wood: American yellow poplar

AUTHENTIC WOOD, MODERN DESIGN
Cover : Terminal Puerto BCN Barcalona, Spain
Architect : Grupo JG
Product : Linear open system 15 x 70 mm
Wood: European pine coloured

Let your imagination run free to create themost remarkable, solid wood ceilingdesigns with Linear Wood system fromHunter Douglas. The system provides
extensive design freedom for interior andexterior applications. Concave, convex andundulating sections can easily be formed,
thanks to the specially engineered
suspension system.
Hunter Douglas Linear Wood ceilings haveinspired leading architects from all over
Europe to create prestigious projects, suchas airports, universities, hospitals,
swimming pools and offices.

SYSTEMS & DESIGN

2-5

WOOD SPECIES

6-7

PRODUCT
AND SYSTEM
SPECIFICATIONS

8 - 111

SYSTE MS & DESIG N2

Flawless details
Endless possibilities

Above : FNWI, Amsterdam, the Netherlands
Architect : Rudy Uytenhaak, Meyer en Van Schooten en Herman Hertzberger
Product : Grid system 8-30-15-45
Wood: American Ash

SYSTEMS & DESIGN
Hunter Douglas Wood system consists ofthree basic designs: Linear open, Linear
closed and Grid allowing for virtuallylimitless design options.
• Linear standard width, open orclosed, interior or exterior system• Linear variable width, interior orexterior system• Grid, interior or exterior system• Concave, convex or undulating forms• Horizontal, vertical or inclined ceilings

Above : Conservatorium Amsterdam, the Netherlands
Architect : De Architecten Cie, Amsterdam
Product : Linear open system 15 x 74 mm: American Red OakWood

Designs are available in a wide varietyof different wood species. After thearchitect has formulated the design,Hunter Douglas can assist in bringing
the vision to life with our technicalsupport services.

Below : Cultureel Centrum Alblasserdam, the Netherlands
Architect : Abrahamse De Kock Architecten BNA Dordrecht
Product : Grid system 6-40-15-35
Wood: African Ayous

3

OPEN AND CLOSED LINEAR SYSTEM
The Hunter Douglas Linear solid wooden
system is available in both open and closed
formats that can be specified as either a fixedor demountable system, allowing easy accessinto the plenum.
The system’s design ensures that the panels
remain level and straight in all situations,
including large, flat areas, externally and inswimming pool environments.

4Right: Erasmus University, Rotterdam,The Netherlands
Architect : 1970 Elffers, van der Heyden en Hoogeveen
Product : Linear open system 15 x 70 mm
Wood: American Red Oak

: Union Square, Aberdeen, UK
Left
Architect : BDP
Product : Solid Linear system combined with Grid system
Wood: Western Red Cedar

The Grid system consists of panels made ofsolid wooden slats connected to each otherwith an anodised black aluminium dowel orflexible dowel. Optionally also available inblank anodised aluminium or wooden dowel.
Using a male/female dowel connection system
ensures the seamless alignment of the panels.
The demountable panels are fixed to a black
metal grid with a dowel clip.

Above : Wine Cellar, Barcelona, Spain
Architect : Pilar Libano
Product : Grid system
Wood: Western Red Cedar

SYSTE MS & DESIG N

GRID SYSTEM

5WOOD SPECI ES
6

WOOD SPECIESThere is an extensive choice of wood species available, ranging from the deep warm colours including
Western Red Cedar, Merbau or Mahogany to the light wood tones of Poplar, Maple or Ayous.
Upon request, we can use almost every kind of wood your design requires. The wood canbe finished in transparent lacquer or can be stained in any colour.

Ayous

CambaraOak

AshSteamed Beach

European Pine

JatobaCherryLarch

Mahogany

Maple

Meranti

MerbauWalnutOregon PinePoplar

Teak

White OakWestern Red Cedar

HunterDouglas ® Ceilings - Linear WoodTOUCH OF NATURE
Each piece of wood has its own structure andcharacteristics and can behave differently. Whenselecting solid wood for a project you will findnatural and authentic touches like growth
patterns, notches and colour variations.
These effects are typical characteristics of asolid wooden ceiling and result in a naturally
beautiful and lively surface.
QUALITY
Hunter Douglas uses only the finest quality ofwood in the Wood ceiling system. From raw
timber to finished ceiling system, our production
process is carried out with the latest computer
controlled machinery and closest supervision toensure a high quality product. Architects andcontractors can count on our knowledge andexpertise when choosing materials for theirceiling designs.

On request FSC wood can be applied if it
is available in the preferred wood specie.

HunterDouglas ® Ceilings - Linear Wood7

Product and system specifications
LINEAR SYSTEM
Linear Wood from Hunter Douglas is a suspended system consisting of solid wooden panels mounted on a metal suspension
rail with clips. The Linear ceiling system consists of two basic designs: Linear open and Linear closed.

1. LINEAR OPEN
The Linear open system panels aresupplied in following widths (in mm).
* Standard, other modules are available
on request

STANDARD WIDTHS (MM):Module
75
82.5
85
89
101.6
105
111*
125
135*

Panel width6363.57070
82.6
9292110116

Ceiling application
VARIABLE WIDTHS
It is possible to combine panels of different
widths into the Linear open system.

Thickness
1515151515
15151515

Joint width
121915
19
19
13
1915
19

Wall application

15101.6

70

1995.2

184.2

Acoustical felt

2. LINEAR CLOSEDWith the Linear closed system, the panels
shiplap over each other to form a closedsystem.

STANDARD WIDTHS (MM):Module89*
111

Panel width
96118

Thickness
1616

Joint width-*Other sizes on request

Ceiling application

8

HunterDouglas ® Ceilings - Linear Wood

Ceiling with perimeter wood

Product and system specifications
3. LINEAR CURVED CEILING
The Linear closed and open system caneasily be installed in concave, convex or
undulating curved patterns. The rail ispre-curved in the factory to the specified
radius.

Curved ceiling application

4. LINEAR CONSTRUCTION OF THE
PANELS
The wooden panels are available in avariety of different widths and sections.
The minimum width for the open system is
63 mm, for the closed system it is 96 mm.
The maximum width for both systems isdepending on wood specie. The thicknessof the panels is minimum 15 mm.
An acoustic felt strip can be fixed to thepanels in the factory.
A maximum of 50% of the ceiling surface
can be specified as demountable.
Longitudinal connection
The panels are joined, where necessary,
using a tongue and groove connection
across the width of the panel. This joint
detail is reinforced with a steel fixation pin
inserted into the back of the panel.

5. ACOUSTICS
Various acoustic effects can be achieved
with the Linear Wood system, depending on
the use of the space for which the ceiling isdesigned. An acoustical felt can be applied
to the linear open system. This closes theopen joint between the panels andimproves acoustic sound absorption.
When installed in an undulating or raked
formation, the system achieves a higher
level of acoustic absorption. Panels canalso be supplied with a plywood infill for
exterior installations or a higher level ofacoustic reflection.

The table indicates the acoustic test results of an open Linear Wood ceiling withacoustical felt covered with 20 mm thick, 90 kg/m3 acoustically absorbative material.
Frequency (Hz)
Absorption coefficient
NRC-value

125
0.57
0.70

2500.83

500
0.76

1,000
0.65

2,000
0.47

4,000
0.33

Values depend on surface, type of ceiling, plenum depth

HunterDouglas ® Ceilings - Linear Wood

9Product and system specifications
GRID SYSTEM
The grid system consists of wooden slats connected to each other with an anodised black aluminium dowel or flexible dowel. Optionallyalso available in blank anodised aluminium or wooden dowel. The aluminium or wood are used in straight ceilings, the flexible ones forcurved installations. Product parameters provide flexibility for the specifier to determine slat dimension and separation. The open Gridceiling is very useful in areas that require a high degree of acoustic control.
1. CURVED AND OTHER VARIANTS
The slats can be installed horizontally,vertically or curved, due to the flexibledowel.

MEASUREMENT
A grid panel has a maximum length of3300 mm. The panel width is between
300 and 400 mm depending on the exact
slat dimension and spacing. The minimum
distance between the slats is 15 mm, witha maximum slat height of 35 mm. Whenthe slat height is above 35 mm, theminimum measurement is 20 mm.

Ceiling application

Wall application

Hanger
Dowel clip

min 30 mm

CONSTRUCTION
The dowel is pushed through the slats andfixed on the back. The width of the gridpanels is dependent of the building designand layout. To ensure that the suspension
remains unobtrusive, the rails, dowels andclips are painted black.

min 15 mm

RailDowel clipDowel

Min 15 mm or 20 mm

The distance between the dowels is300 mm. The panels are connected toeach other with a male/female dowelintersection which conceals the joint.
A gap of 10 mm is formed between one
panel and the adjacent panel.

EXAMPLES OF PANEL TYPESThe maximum length of a panel is
3300 mm, depending on wood specieand design.
The diameter of the dowels is 12 mm.
Optionally also available in 20 mm.

Panel
type
05-45-15-31
07-20-30-35
10-20-15-55
08-15-30-31

Lath57108*These are the minimum sizes

10HunterDouglas ® Ceilings - Linear Wood

Jointwidth
45
20
20*
15*

Slat
width
15*
30
15*
30

Slat
height
31*
35
55
31*

Panel
width
300
350
350360General
EXTERIOR CEILING, SWIMMING POOL
AND SPORT CEILING
Exterior ceilings, swimming pool and sportceilings are non demountable in the linearsystem, but it is possible to provide accessareas. Special lacquer protects the wood
surface against extreme humidity.
Linear Wood is also impact resistant andtherefore very popular in sport centres.

MATERIAL
Wooden panels

SURFACE TREATMENT
Linear Wood can be finished with transparent lacquer or stained to practically any
desired colour. The wooden panels can becompletely varnished to protect from theinfluences of humidity and moisture.
Standard panels can withstand a relative
humidity of up to 70%.

EXTERIOR USE

Moisture content wood
Suspension system
Felt strips
Clips
Clip rails

Any type of wood that is qualitatively suitable for a
Linear Wood ceiling
8-12% upon delivery
Steel, sendzimir galvanised
Non-flammable. The acoustical felt strip is ventilating
Spring steel with Geomet coating, fixed or detachable
Sendzimir galvanised steel profile and supplied with notches
for the clips

OPTICAL CHARACTERISTICS
Wooden panels can change appearance
when exposed to ultraviolet rays.
FIRE RETARDANT
Fire safety is an essential element of every
wooden ceiling. The panels are treatedwith a vacuum pressure method toimpregnate with a FR liquid.
Linear Wood achieves the European CE
Classification, SBI test, class B, s2, d0.
The felt strip fulfils the highest fire
retardant requirements for textiles, F1.
INSTALLATION
From the factory, the panels are suppliedwith a felt strip along one long edge andthe rails are supplied with clips according
to specified module. At the building site,
the rails are fixed at the correct centres
and suspended from the structural ceilingusing galvanised angle. The wood panels
are fixed to the clips on the rail using aclamping tool. The relative humidity should
be no more than 65% and the building
should be water tight. The panels can not
be stored direct on the concrete floor.

Exterior building applications need to contend with severe conditions like wind, rain, snow,
dirt, vandalism and UV light. Our special wood treatment and our windproof systems ensure
durability in applications like canopies, shopping centres and railway/underground stations.

MAINTENANCE, OPERATION
Maintenance: Clean with water with a mild
synthetic cleaning agent
Repairs: The removable sections allow
access into the plenum for maintenance.
HunterDouglas ® Ceilings - Linear Wood

11

HUNTER DOUGLAS ARCHITECTURAL PRODUCTS
In the last 50 years, we’ve been fortunate enough to help turncountless innovative sketches into innovative buildings.

Architects, designers, investors and contractors from around theworld have taken advantage of Hunter Douglas’ unmatched productdevelopment, service and support. Chances are, you’ve seen more ofHunter Douglas than you think.
With major operation centres in Europe, North America, Latin America,
Asia and Australia, we’ve contributed to thousands of high-profile
projects, from retail and commercial facilities to major transit centres
and government buildings.
Not only are the world’s architects and designers our partners,
they’re our inspiration. They continue to raise the bar for excellence.
We create products that help bring their visions to life: Window
Coverings, Ceilings, Sun Control Systems and Façades.

Promoting sustainable
forest management
www.pefc.org

12

HunterDouglas ® Ceilings - Linear Wood

Hunter Douglas products andsolutions are designed to
improve indoor environmental
quality and conserve energy,
supporting built environmentsthat are comfortable, healthy,productive, and sustainable.

The Forest Stewardship Council
is an international non-profit
organization founded in 1993 tosupport environmentally appropriate, socially beneficial, andeconomically viable managementof the world’s forests.

ARCHITECTURAL SERVICES
We support our business partners with a wide range oftechnical consulting and support services for architects,developers and installers. We assist architects anddevelopers with recommendations regarding materials,shapes and dimensions and colours and finishes. We
also help creating design proposals, visualisations andmounting drawings. Our services to installers range
from providing detailed installation drawings andinstructions to training installers and advising on thebuilding site.

HUNTER DOUGLAS is a publicly traded
company with activities in more than
100 countries with over 150 companies.
The origin of our company goes back to 1919,
in Düsseldorf, Germany. Throughout our history,
we have introduced innovations that haveshaped the industry, from the invention of thecontinuous aluminium caster, to the creationof the first aluminium Venetian Blinds, to thedevelopment of the latest high-quality building
products.
Today we employ more than 16,500 people inour companies with major operation centres inEurope, North America, Latin America,
Asia and Australia.

Innovative Products
Make Innovative Projects

Learn More® Registered trademark - a HunterDouglas® product Pats. & Pats. Pend. - Technical data subject
to change without notice. © Copyright Hunter Douglas 2010. No rights can be derived from copy,
text pertaining to illustrations or samples. Subject to changes in materials, parts, compositions,designs, versions, colours etc., even without notice. MX600W00

Contact our Sales officewww.hunterdouglascontract.com

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HUNTER DOUGLAS PROJECTS UK
Keys Park Road - Hednesford
Staffordshire - WS12 2FR
Tel. +44 (0)1543 27 57 57
Fax +44 (0)1543 27 14 14
ceilings@hunterdouglas.co.uk
www.hunterdouglas.co.uk