Installation Guide
82
DESIGNER RAILING
HOW TO INSTALL STANDARD RAILING
TREX DESIGNER SERIES
All Trex Designer Series Railing
®
uses the same
application for attaching posts to the rim joists. Posts
may be pressure-treated wood or a Trex Railpost
™
.
Read all instructions BEFORE installation.
Installing Posts
» Post span = maximum
6' (1.83 m) on center.
» Attach post using 1/2"
(1.3 cm) carriage bolts.
» Minimum joist size is
2 " x 8" (5.1 cm x
20.3 cm).
» Top bolt must be 1"
(2.5 cm) from top of joist.
» Bottom bolt must be 5-1/8" (13 cm) from top bolt.
NOTES:
» Blocking can be added for extra strength.
» Trex does not endorse notching any post when it is
required to perform as a guardrail system.
Installing Post Sleeve
Skirts and Post Sleeves
2. Slide post sleeve skirt
over post and down to
rest on decking surface.
Slide post sleeve
over post and position
inside post sleeve skirt.
Cutting post sleeves
is NOT required.
Installing Railing Support Brackets (RSBs)
Option 1: Without TrexExpress
™
Designer Series Railing
Assembly Tool
3a. For 36" (91.4 cm) height, mark 4" (10.2 cm) and
35-1/2" (90.2 cm) from deck surface OR for 42"
(106.7 cm) height, mark 4" (10.2 cm) and 41-1/2"
(105.4 cm) from the deck surface.
3b. Place RSBs on marks, center on posts and secure
with 2" (5.1 cm) wood screws (provided). Brackets
should be aligned so top part of bracket aligns
with mark.
NOTE: Place both top and bottom RSBs flat side UP.
Option 2: With TrexExpress
™
Designer Series Railing
Assembly Tool
3c. Place RSBs in template. Place both top and
bottom RSBs flat side UP. Secure template on
post sleeve with tape or rubber band, with bottom
of template resting on post sleeve skirt. If post
sleeve skirts are not used, place 1-1/4" (3.2 cm)
shim under tool for proper bracket location.
3d. Secure RSBs with 2" (5.1 cm) wood screws
(provided) and remove template.
Measuring and
Cutting Railings
4. Measure and cut top
and bottom rails to fit
between posts. Leave
1/16" (0.15 cm) gap at
each end for cold
weather expansion.
1
5-1/8" (13 cm) min.
2" x 8"
(5.1 cm x
20.3 cm)
min.
1" (2.5 cm) min.
35-1/16\
(89.1 cm)
or
41-1/16\
(104.3 cm)
35-1/2"
(90.2 cm)
or
41-1/2"
(105.4 cm)
4"
(10.2 cm)
3a
1
1
3b
2
3c
2
2
3d
1
1
2
2
4