Installation Guide
113
TREX
®
 SIGNATURE™ RAILING
ATTACHING STAIR SWIVEL/COMPOUND SWIVEL BRACKETS AND 
RAILS TO TREX
®
 SIGNATURE™ POSTS AND PRESSURE-TREATED POST 
AND POST SLEEVES/
CONTINUED
TREX
®
 SIGNATURE™
11
Mounting HolesMounting Holes
2
1
11.   Remove upper stair rail from balusters and center 
upper stair swivel bracket on post above the marked 
line and attach using four self-tapping screws 
(provided).
12. Cut top rail along with rail insert to the measurement 
between the top stair swivel brackets. For standard 
post to standard post configurations this would be 
same dimensions as that of the bottom stair rail. 
13. Mark and cut top rail 
cover same length as 
top rail for all top rail 
configurations.
14.  Attach “crowned" upper stair rail cover to upper 
stair rail by aligning cover on one side of rail. Then 
starting from one end of stair rail, snap cover onto 
opposing slot working down length of stair rail. 
GENTLE tapping with a rubber mallet may facilitate 
fastening.
Installing Balusters into Bottom Stair Rail
15.  Place balusters into holes in lower stair rail by snap-
ping fully into place. In some cases, GENTLE tapping 
with a rubber mallet may facilitate fastening. 
Attaching Upper Stair Rails
16. Working from one end of upper stair rail, snap 
balusters into upper 
stair rail working down 
length of rail.
17. Attach top stair rail 
to top stair bracket 
(all types) using two 
self-tapping screws 
(provided) on each side 
of stair bracket.
NOTE: Pre-drilling is required (7/64" [0.28 cm] drill bit) 
for attachment of stair railing to stair bracket.
12
Standard
post
Standard
post
Standard
post
1
14
3
2
13
15
16
17










