Installation Guide

83
TREX
®
SIGNATURE™ RAILING
NOTES:
» Metal backplate is only required for 2.5" (64 mm)
post in IRC installations. (Consult local code official
for more information.)
5. Using post a template, mark locations of holes.
6. Drill through decking and blocking boards using
5/8" diameter bit (long drill bit will be required).
7. Insert the (2) stainless
steel barrier strips
under the mounting
bolt holes. BARRIER
STRIPS ARE REQUIRED
ONLY IF ATTACHING
POST DIRECTLY TO
PRESSURE TREATED
FRAMING.
8. Attach posts using four
3/8" x 6" (10 mm x
152 mm) hex cap bolts,
washers, and nuts,
along with aluminum
back plate on underside
of blocking. If the
project requires IRC
compliance, this
back plate MUST be
installed under the
decking to ensure
this will meet code
compliance. Reference
SKU part number
ALPOSTHWDECK for
required hardware and aluminum plate. (Consult
local code official for more information on IRC
Compliance.)
INSTALLING PRESSURE-TREATED POSTS,
POST SLEEVES, AND SKIRTS TO USE WITH
TREX
®
SIGNATURE™
RAILING
1. Attach posts using 1/2"
(13 mm) carriage bolts.
» Minimum joist size is 2" x
8" (51 mm x 203 mm).
» Top bolts must be 1"
(25 mm) from top of
joists.
» Bottom bolts must be
5-1/8" (130 mm) from top
bolts.
NOTE: Blocking can be added for extra strength.
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.
NOTE: Shims can be used to
plumb post sleeves.
Installing Trex
®
Signature™ Posts on Concrete
Pre-Drilled Holes
1. Using post as a template, mark locations of the four
holes and drill into concrete at least 2-5/8" (67 mm)
using a 3/8" (10 mm) masonry bit.
NOTE: You can either set drill bit to correct depth on
drill or mark drill bit with tape at required dimension to
ensure all holes are drilled at correct depth.
2. Clean out holes to remove all concrete dust using a
shop vacuum or other appropriate tool.
1
2
2
1
5-1/8" (130 mm) min.
2" x 8"
(51 mm x
203 mm)
min.
1" (25 mm) min.
1
3/8"
(10 mm)
INSTALLING TREX
®
SIGNATURE™ POSTS AND/OR TREX
®
SIGNATURE™
CROSSOVER POSTS ON WOOD OR CONCRETE/
CONTINUED
5
6
barrierbarrier
7
8
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.