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38
HOW TO INSTALL DECKING
HOW TO INSTALL TREX TRANSCEND PORCH BOARDS
NOTE: When installing Trex Porch boards in a
non-covered environment, the porch structure should be
slightly sloped to help allow for proper drainage. Joists
should be sloped 1/8" (3 mm) per foot away from the
house to facilitate drainage. Refer to your local building
code offi cial for recommendations BEFORE building
substructure. When installing Trex Porch boards under
cover of a roof, no slope is required.
PARTS
TOOLS NEEDED
NOTE: Refer to page 31 for proper joist spanning
requirements.
Installing Start Clips and First Porch Board
1. Measure 3/8" (10 mm) off of edge of ledger board,
and install start clip onto ledger board, centered on
each joist. Secure clips with screws.
2. Push grooved edge (longer edge side) of porch
fl oorboard into start clips. Important: First board
MUST be straight and well secured.
Installing Trex
Hideaway Universal
Hidden Fasteners
3. Insert fastener into
grooved edge (shorter
edge side) of porch
board, making sure
to align screw hole in
fastener with center of
each joist.
4. IT IS SUGGESTED
THAT IN ORDER TO
KEEP THE FASTENER
STRAIGHT AND
SECURE, CUT AN 18
"
(457 mm) PIECE
OF PORCH SCRAP
BOARD AND USE
THIS AS AN AID (USE
SMALLER LIP SIDE)
TO HELP HOLD THE HIDDEN FASTENER DOWN
BEFORE SCREWING THIS IN. This will help make
sure the fastener stays fully straight for remaining
boards to be attached.
5. Fully tighten (but
DO NOT over tighten)
the screw into each
joist while keeping
the scrap board in
fi rm place against the
hidden fastener.
Installing Second Porch Board
6. Slide second porch board into place, making
sure fasteners fi t into groove. Install the next universal
fastener on the other side of the second porch board
in the same manner as Steps 3–5.
1
3/8" (10 mm)
2
2
3
1
1
2
2
Scrap board
5
4
6
Start clip
Universal fastener
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
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