Installation Guide
122
SELECT RAILING
HOW TO INSTALL TREX SELECT STAIR RAILING/CONTINUED
TREX SELECT
If Attaching Original Foot Block to Bottom Rail
4a. 
For stair applications, cut the section of foot block at 
an angle to match rail. Refer to foot block instructions 
for specifi c information on how to do this.
4b.  Invert bottom rail. Center foot block on bottom 
rail and attach at marked position per Original foot 
block instructions. DO NOT extend foot block.
If Attaching New Foot Block to Bottom Stair Rail
4c. Invert the bottom stair 
rail. Center and drill a 
hole using a 3/16" drill 
bit. This will be location 
for foot block (to be 
installed last).
Attachment of 
Brackets to Railings
5a. Check fi t for both top 
and bottom railings in 
designated positions 
for location onto posts. 
Remove railings.
Upper Stair Post 
Locations 
5b.  Snap the top stair 
adaptor bracket 
(labeled TOP) to the 
standard bracket. 
Repeat for remaining 
bracket.
Upper Stair Post Locations
5c.  On the TOP RAIL, attach the assembled top stair 
bracket to the side with baluster holes. On the 
BOTTOM RAIL, attach the assembled top stair 
bracket to the OPPOSITE SIDE of the baluster 
holes. Attach both brackets using three #8-18 x 1" 
self-drilling screws (provided).
Lower Stair Post 
Locations 
5d.  Snap the bottom 
stair adaptor bracket 
(labeled BOTTOM) to 
the standard bracket. 
Repeat for remaining 
bracket.
5e. On the TOP RAIL, attach the assembled bottom 
stair bracket to the side with baluster holes. On 
the BOTTOM RAIL, attach the assembled bottom 
stair bracket to the OPPOSITE SIDE of the baluster 
holes. Attach both brackets using three #8-18 x 1" 
self-drilling screws (provided).
4a
1
4b
2
4c
5a
5d
1
1
5c
Top Rail Bottom RailBottom Rail
22
5b
1
1
5e
Top RailTop Rail Bottom RailBottom Rail
22










