Installation Guide
117
TREX
®
 SIGNATURE™ RAILING
ATTACHING STAIR RAILS IN CROSSOVER POST APPLICATIONS/CONTINUED
TREX
®
 SIGNATURE™
13
Installing Balusters into Bottom Stair Rail
13. Place balusters into 
holes in lower stair rail by 
snapping fully into place. 
In some cases, GENTLE 
tapping with a rubber 
mallet may facilitate 
fastening.
Attaching Upper Stair Rails
14. Working from one end 
of upper stair rail, snap 
balusters into upper stair 
rail working down length 
of rail. 
15a. For stair post-to-post 
configuration, attach 
top stair rail to top stair 
bracket (all types) using 
two self-tapping screws 
(provided) on each side 
of stair bracket.
15b. For stair crossover post 
configuration, fasten 
upper stair rail to swivel 
crossover post bracket 
by installing screws 
diagonally through 
crossover stair bracket 
into upper rail using 
two self-tapping screws 
(provided) on each 
side.
NOTE: Pre-drilling is required (7/64" [0.28 cm]  
drill bit) for attachment of stair railing to stair bracket.
Attachment of Stair Bracket Covers, Skirts,  
and Caps
16.  Attach crossover bracket covers over opening in 
upper rails.
17.  Attach provided post skirt to bottom of posts when 
using Trex
®
 Signature™ posts.
18. Attach post caps to Trex
®
 Signature™ posts  
(use of rubber mallet may be required for secure 
attachment).
19.   Attach post caps to post sleeves using external 
  grade PVC construction adhesive.
18
Trex
Signature™
post
®
2
19
Post
sleeve
3
1
15a
15b
16
1
1
17
Trex 
Signature™
post
®
2
14










