Installation Guide
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1–800–BUY–TREX
Note: Construction methods are always improving. Please ensure you 
have the most up-to-date installation instructions by visiting: 
trex. com TDL-1110
4
TREX
®
 DECKLIGHTING™
How to Install
Installing Recessed Deck Lights 
Note: Install recessed deck lights after installing decking.
1.   Mark locations for lights in deck boards. 
Note: If possible, avoid locations over joists as holes will be 
more difficult to create.
2.   Drill a 1" (2.5 cm) diameter hole 3/4" (1.9 cm) deep 
into deck board. Hole cannot go all the way through 
deckboard or light will fall through. Ensure drill bit is 
perpendicular to board. Drill a 1/4" (0.6 cm) diameter 
hole in base of the first hole through deck board.
3.   Thread wires through hole. DO NOT pull LED into hole 
by pulling on wires. This may damage wires or LED.
4.   Press light into hole until 
flush with surface. Make 
connections under deck 
with the provided wire nuts. 
See Making Connections 
on page 2. 
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3
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1
2
2
3/4" (1.9 cm)




