FRAMING AND FASTENING REQUIREMENTS
Fastening Tip for Trex Decking NOTE: When using pneumatic or battery-operated equipment, adjust the pressure so that you only shoot the head of the screw to be flush with the board’s cap. DO NOT shoot the fastener head completely through the shell.
In most cases, install fasteners at a 90° angle (perpendicular to the board).
Clean Cut Boards
At board ends on the deck's edge, you can install screws placed perpendicularly at the recommended distance, at minimum of 25mm from the board end and edge, without splitting the board. For butt joints, where boards meet over a single joist, add a secondary joist or add a short "sister" joist by screwing to the full length joist at the butt joint. This allows screw-in at 90 degrees and allows fasteners to be used at end of each board. ALWAYS ENSURE THAT END OF EACH BOARD IS FULLY RESTING ON ITS OWN FRAMING MEMBER.
5mm
IMPORTANT: You MUST clean cut boards on both ends (min. 5 mm). Composite decking is a great alternative to traditional wood decking. When building your deck and railing, it is recommended that code-approved structural material be used as the framing and joists. Check your local building codes for restrictions. Trex decking cannot be used for structural applications. Do not attach Trex decking directly to any solid surface or watertight system.
Dock Applications Trex decking is approved for all water-contact applications. Boards can be submerged in water for extended periods of time, including multiple times a day with rising tides.
Stainless steel fasteners should be used.
In addition, if there is a great deal of contact between the dock and gasoline, grounding of the dock is also recommended.
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