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
3
Installing Deck Rail Lights 
Note: Install deck rail lights after the railing system, post 
sleeve skirt, and post sleeve have been installed.
1.   Mark desired height, centered on post sleeve for deck 
rail light location.
2.   Drill a 1" (2.5 cm) hole through post sleeve. Use care to 
stop drill before cutting into post. 
3.   Fish wire from deck rail light through hole and up to top of 
post. Cut wire loop at the top of the post. Strip the two wire 
ends. Make connections with the provided wire nuts. See 
Making Connections on page 2.
4.   Push back housing and wires into hole. Align holes for 
screws vertically
 and attach fixture base to post with 
provided screws as indicated above.
5.   Line up polycarbonate lens with fixture housing. Twist 
onto fixture base.
Installing Riser Lights
Note: Install riser lights after stair and risers have 
been installed.
1.   Mark the locations for each light, generally 4" (10.2 cm)  
above the tread. Consult local codes for lighting 
requirements. 
Note: If possible, avoid locations over stringers as holes will 
be more difficult to create.
2.   Drill a 1" (2.5 cm) diameter hole at least 1" (2.5 cm) deep 
into riser. If the riser material is thicker than 1" (2.5 cm), use 
a 1/4" (0.6 cm) drill bit to create a passage for the wires.
3.   Thread wires through hole.
4.   Press light into hole, 
ensuring lens is horizontal. 
Make connections behind 
the stairs with the provided 
wire nuts. See Making 
Connections on page 2. 
Note: Do Not install Riser 
Light or Deck Rail Light into top 
or bottom rails or balusters.
TREX
®
 DECKLIGHTING™
How to Install
1
4
2
2
Post
Post 
Sleeve
1
2
5
6"
(15.2 cm)
3
1
4"
(10.2 cm)
4"
(10.2 cm)
1
2
4
3




