Installation Guide

93
TRADITIONAL RAILING
HOW TO INSTALL RAISED RAILING
TREX
®
TRADITIONAL/OPTION 1
Rails BETWEEN Posts with STANDARD Trex
Balusters
Installing Pressure-
Treated Posts
» Attach posts 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
joists.
» Bottom bolts must be 5-1/8" (13 cm) from top bolts.
NOTE: Blocking can be added for extra strength.
Installing Post Sleeve
Skirts and Post Sleeves
2. Slide post skirt over
post and down to rest
on decking surface.
Slide post sleeve
over post and position
inside post skirt.
NOTE: Shims can be used to plumb post sleeves.
Cutting Posts to Length and Installing Top Rail
3. Cut posts to designated height as measured from
top of decking surface. Measure distance between
posts from center-to-center.
Make scarf cuts on each end of
deck board and use two exterior-
approved screws per end to
secure boards to posts with
board centered over posts.
*NOTE: If installing at below 40°F (4°C) leave 1/8"
(0.3 cm) gap in scarf joints between boards.
Cutting Lateral Rails
4. Measure distance between inside edges of posts
and cut two 2" x 4" (5.1 cm x 10.2 cm) lateral rails
to fit. Leave 1/16" (0.15 cm) gap at each end for
cold weather expansion.
4
1/16"
(0.15 cm)
1
2
2
1
5-1/8" (13 cm) min.
2" x 8"
(5.1 cm x
20.3 cm)
min.
1" (2.5 cm) min.
3
x2
2
42" Max.
(106.7 cm)
36" Min.
(91.4 cm)
< 40°F (4°C) = 1/8"
(0.3 cm) gap*