2017 INSTALLATION GUIDE

TREX®

DECKING

ENGLISH

2017 INTERNATIONAL INSTALLATION GUIDE

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TOOLS NEEDED SAFETY

Mitre saw blade (254 mm—305 mm. 40 teeth or more)

Standard power drill

Carbide-tipped blades

Trex groove router bit

Trex groove cutter

Safety glasses

Dust mask

Gloves

Long sleeves

NOTE: Construction methods are always improving. Please refer to www.uk.trex.com for the most up-to-date installation requirements.

• Please be sure to follow the temperature suggestions at installation to allow for the expansion and contraction of Trex WPC boards.

• For Trex Railing, Hot Tub, Fire Pit or Lighting installation instructions, visit www.uk.trex.com.

• For Care and Cleaning (Trex Transcend®, Trex Contour®) and Physical and Mechanical Properties (Trex Transcend®), visit www.uk.trex.com and scroll to the bottom to select your country.

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SAFETY

25 mm Square-Edge BoardActual Dimensions:25 mm x 140 mm x 365 cm / 487 cm / 609 cm

25 mm Grooved-Edge BoardActual Dimensions:25 mm x 140 mm x 365 cm / 487 cm / 609 cm

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Trex Universal Start Clip/Elevations Start ClipBlack-coated Stainless Steel (steel grade 302SS)

Trex Universal Hidden FastenerGlass-filled Nylon (steel grade 302SS)

Fascia and Deck Screws (Not supplied by Trex)Supplied by installer

Router Bit

Trex Elevations Universal Hidden FastenerBlack-coated Stainless Steel (steel grade 410SS)

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TREX DECKING, FASCIA, AND FASTENING SYSTEMS

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RECOMMENDED FASTENERS

�* Fascia system screws listed above can only be used with composite fascia profiles, and cannot be used with standard thickness decking boards used as fascia. Use stainless steel screws near water applications.

If any condition occurs which is attributable to the use of non-recommended fasteners, such condition shall not be covered under Trex’s Limited Warranty.

FastenMaster®, TrapEase® 3, and Cortex® are registered trademarks of OMG, Inc.

DeckFast® Fascia System screws are registered trademarks of Starborn Industries Inc.

SplitStop™ fascia screws are a registered trademark of Titan Metal Werks, Inc.

Trex recommends the use of two screws per joist.

All recommended screws are designed to be installed flush with decking surface, DO NOT countersink screws.

Use recommended stainless steel screws in any areas near bodies of saltwater.

TREX PRODUCT LINES Transcend® Enhance® Contour®

Trex Hideaway® Universal Hidden Fastener/Trex Elevations Universal Hidden Fastener X X X

FastenMaster® TrapEase 3 Ultimate Composite Deck Screw X X X

Cortex® Concealed Fasteners** X X

Starborn® DeckFast® Fascia System – Epoxy Coated* X X Starborn® DeckFast® Fascia System – HeadCote® Stainless*

SplitStop™ Fascia Screws* (uses SplitStop™ Fascia Bit) X X

*Trex Elevations Universal Hidden Fastener are approved**Trex Universal Hidden Fasteners are approved***See Trex recommended fasteners for listing of approved decking screws

This guide is for recommended use of fasteners for use with Trex decking. Not all sub-structure materials fall under these categories. In the case of any unique substrate composition of materials, or proprietary composites, consult the substrate manufacturer for recommendations of applicable fasteners.

COMPATIBLE FASTENER MATERIALS FOR USE WITH TREX

Substrate MaterialCarbon Steel w/

1000 hr. Corrosion-Resistant Coating

Stainless Steel: 410 Series or 1.4003/

1.4006

Stainless Steel: 300 Series or 1.4301/1.4401/1.4567

Exterior Grade Natural or Treated Wood Yes*** Yes Yes**

Plastic or Fiberglass Composites Yes Yes Yes

Aluminum No No Yes

Steel No Yes* Yes

SPANNING REQUIREMENTS

JOIST SPACING SPAN CHART (Center-to-Center)

Residential Decks, Light Duty Docks, Residential/Day Care Playground

Commercial Decks, Boardwalks and Marinas

Decking Loading 4788 N/m2 4788 N/m2 9576 N/m2

24 mm x 140 mm Boards 406 mm 406 mm 305 mm

60°90° 45° 30°

ADJUST JOIST SPANNING TO ACCOMMODATE ANGLED DECKING PATTERNS

90°

RES = 406 mmCOM = 305 mm

60°

RES = 355 mmCOM = 254 mm

45°

RES = 304 mmCOM = 203 mm

30°

RES = 203 mmCOM = 153 mm

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PRESSURE-TREATED FRAMING REQUIREMENTS AND GAPPING

FRAMING TO SUPPORT PATTERNS

Herringbone Pattern Tile PatternPicture Frame Pattern

Residential <407 mmCommercial <305 mm

Max. 13 mm

30 mm

Min. 38 mm

Min.38 mm

6 mm (>4.5°C)13 mm (<4.5°C)

3 mm (>4.5°C)5 mm (<4.5°C)

3 mm (>4.5°C)5 mm (<4.5°C)

NOTES:» This system should not float; it

must be attached securely to framing system.

» With wood framing, all cut ends should be coated to preserve ends. Refer to local building supplier for what can be used.

» When using screws to attach decking to framing, use two screws per every joist.

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6NOTE: Construction methods are always improving. Please refer to www.uk.trex.com for the most up-to-date installation requirements.

METAL FRAMING REQUIREMENTS AND GAPPING

Perimeter joists

Adjust end span framing

per manufacturers requirments

Adjust end span framing

per manufacturers requirements

Double joistspacing per

manufacturersrequiremenrs

Double joistspacing per

manufacturersrequirements

13 mmmax. overhang

Gap deckingwidth-to-width6 mm (>4.5°C)13 mm (<4.5°C)

Gap deckingend-to-end

3 mm (>4.5°C)5 mm (<4.5°C)

Two screws per joist

NOTES:» When using an aluminum framing system

or other type of metal for sleeper systems, follow manufacturer's instructions for proper installation.

» Depending on type of structure being used, different types of fasteners must be used for attachment.

» When using screws to attach decking to framing, use two screws per every joist.

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INSTALLING TREX DECKBOARDS

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6 mm (>4.5°C)13 mm (<4.5°C)

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6 mm

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5 mm

IMPORTANT: You MUST Clean Cut Boards On Both Ends (min. 5mm).

To ensure an appealing mix of color tones, mix and match all boards prior to installation.

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INSTALLING TREX DECKBOARDS/CONTINUED

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Pre-drill

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WallDecking

Gap6 mm (>4.5°C)13 mm (<4.5°C)

3 mm (>4.5°C)5 mm (<4.5°C)

30 mm

30 mm

3 mm (>4.5°C)5 mm (<4.5°C)

Wood Framing

Metal Framing

Abutting Solid Objects

NOTE: Construction methods are always improving. Please refer to www.uk.trex.com for the most up-to-date installation requirements.

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Last Deck Board

*Supplied by installer *Supplied by installer

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3Insert Fasteners

Insert Fasteners

REPLACING TREX BOARDS INSTALLED WITH TREX HIDEAWAY UNIVERSAL FASTENERS

2New board at an angle

Existing Deck

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MAXIMUM SPACING OF STAIR JOISTS (Center-to-Center)

25 x 140 mm boards 240 mm

Stringer

25 mm x 203 mmRiser

Trex® fascia or trim

279 mmmin. depth

6 mm - 10 mmgapping

Fasten treads to all

stringers

19 mmmax. overhang

240 mm max.for 25 mm x 140 mm

Riser removedfor clarity

< 915 mm width 4 stringers> 915 mm width 5 stringers

SPANNING REQUIREMENTS FOR TREX STAIRS

NOTE: Construction methods are always improving. Please refer to www.uk.trex.com for the most up-to-date installation requirements.

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(6 mm >4.5°C)(13 mm <4.5°C)

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Route one side of board (A).

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INSTALLING TREX STAIR TREADS INSTALLED WITH HIDDEN FASTENERS

FIND US ON

Visit uk.trex.com

XDLTGUID20170717

FPO

© 2017 Trex Company, Inc. All rights reserved. Trex®, the Trex logo, Trex Transcend®, Trex Contour®, Trex Hideaway®, Trex Elevations®, Trex® Fascia

are either federally registered trademarks, trademarks or trade dress of Trex Company, Inc., Winchester, Virginia.

BACKdecking: Contour® in Sand Brown

-FRONTdecking: Transcend® in Lava Rock and Tiki Torch