Installation Guide
128
TREX
®
 SIGNATURE™ RAILING
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
Cutting Top Rail 
Option 3:
For Crossover Post-to-Crossover Post Configuration
3c.  Cut each end of top rail 3/4" (19 mm) LONGER than 
the mark to allow for fit into the crossover post 
bracket on each side.
4.   Using razor knife or other cutting tool, cut rail insert 
3/4" (19 mm) FROM EACH SIDE.
5.   Mark and cut top rail 
cover same length as 
top rail for all top rail 
configurations.
If Installing Trex
®
 Signature™ Panel Using Lower 
Bracket with Tab
6a. Break or cut the bottom tab off the bottom 
brackets.
6b. Put a dab of silicone in the basket of the bottom 
bracket to prevent rattle. 
If Installing Trex
®
 Signature™ Panel Using Lower Rail 
Tabless Bracket 
7. Peel backings from 
adhesive strip provided 
and place inside the 
bottom bracket.
8.   Place panel in bottom and top brackets.
3c
3/4 "
(19 mm)
3/4 "
(19 mm)
3/4 "
(19 mm)
3/4 "
(19 mm)
KEY
Mark
Cut
KEY
Top rail
Crossover post
 Crossover post
4
3/4 "
(19 mm)
3/4 "
(19 mm)
3/4 "
(19 mm)
3/4 "
(19 mm)
Top rail
8
5
6a
7a
6b
HOW TO INSTALL PANELS/CONTINUED 
TREX
®
 SIGNATURE™










