Installation Guide
150
SELECT RAILING
HOW TO INSTALL TREX SELECT STAIR RAILING
TREX SELECT
Read all instructions BEFORE installation.
IMPORTANT NOTE: POST TO POST SPAN WILL
BE LESS THAN 6'. PRIOR TO INSTALLING POSTS,
CALCULATE POST TO POST SPAN USING A MAXIMUM
RAIL LENGTH OF 6' AND THE ANGLE (32°-37°) AT
WHICH THE RAILS WILL BE INSTALLED. DO NOT
INSTALL STAIR POSTS AT 6' SPAN, AS STAIR RAILINGS
WILL THEN BE TOO SHORT.
NOTE: All Select railings work ONLY WITH STAIR
SLOPES OF 32° TO 37°.
Installing Posts, Post
Sleeve Skirts, and Post
Sleeves for Stair Rails
1. Install posts, post
sleeve skirts, and post
sleeves according to
standard Select railing
instructions.
» In most cases, a post and post sleeve longer than
39" (991 mm) will be needed on the lower section
of stair rail to accommodate stair angle.
» Make sure top and bottom posts for stars are
installed at nose of each tread.
Measuring and Cutting Railings
2 . Set railing along the nose of the stair treads, making
sure baluster holes are vertically aligned and mark
line at each intersection. When measuring, cut
equal lengths from each side of railing allowing a
minimum of 2" (51 mm) on each end from the last
baluster hole to the end of the rail. This will ensure
proper baluster and bracket placement and equal
spacing of balusters per each railing section.
Cutting Balusters on
Angle (OPTIONAL)
3a. In order for balusters
to seat properly
(depending on the
angle of the stair
railing), the balusters
may need to be
trimmed to match the
angle of the bottom and top railing.
3b. Set bottom railing on nose of stair treads and set
baluster at 90° on the outside of the railing. Mark
and measure the angle.
NOTE: Measure, mark, and cut a scrap board to ensure
you have proper angle BEFORE cutting balusters on
angle.
3c. Cut the VERY END of
baluster, both top and
bottom, making sure
that point to point
measurement of the
baluster remains at
either 32" (813 mm) for
36" (914 mm) rail heights
or 38" (965 mm) for
42" (1067 mm) rail heights.
IMPORTANT NOTE REGARDING FOOT
BLOCK INSTALLATION: .
» Refer to detailed instructions (Trex
Select) rail instructions) included
with foot block prior to installation of
railing section as these include other required steps
for proper installation.
1
3a
2
3b
32" (813 mm)
or
38" (965 mm)
3c
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.