Installation Guide

DECKING

Important Notes Before Installing Trex

Decking

3/16" (5mm)

It is recommended to clean cut boards on both

ends a minimum 3/16" (5mm).

To ensure an appealing mix of color tones,

mix and match all boards prior to installation.

Pre-drill using 1/8" bit

1" (25mm)

If installing in localities prone to large

temperature shifts within a 24-hour period,

and installing Trex Universal Hidden Fasteners,

predrill and toenail a screw (use same screw

used in hidden fasteners) at an angle in groove

at both ends (at least 1" (25mm) from board

end) and center of each board.

Routing Square Edge Boards for Trex Hideaway

Hidden Fasteners

NOTE: All Trex square edge proﬁles, either 1x6 or 2x6,

can be routed.

Using a Trex router bit with standard router:

1. Rout from bottom side of board.

2. Rout the entire length of the board, or at every

intersection where board is over support joists.

1/8" (>40°F)

3/16" (<40°F)

3mm (>4.5C)

5mm (<4.5C)

Abutted Board Attachment Requirements

Metal Framing

NOTE: Hidden Fasteners MUST be used at every joist.

NOTE: Use a drill (with adjustable clutch and torque)

and adjust these settings if necessary to ensure screw

is seated correctly in fastener. DO NOT countersink the

screw head into the fastener. Screw head should be

ﬂush with the top of the fastener.

NOTE: Optional - Gap joist framing 1/8" - 1/4" to allow for

water drainage.