Poly RAIL Systems TRX Vinyl Series Installation Instructions

TRX Vinyl and TRX "B" Series Railing
Installation Instructions
NOTE: These instructions must be followed exactly as written and the material used must be exactly as shown in the instructions. Any deviation from the instructions or variation in the
material used/installed may result in an unsuccessful installation.

Post Applications

POST APPLICATIONS
Aluminum Post Mount for Concrete & Wood
Applications:
If using a Standard Aluminum Post Mount (Residential) or Heavy-Duty
Aluminum Post Mount (Commercial), see the instructions included with
your mount.
4" x 4" Wood Support Posts:
Note: A 4" x 4" Vinyl Post does not have any structural strength to support weight
bearing roofs.
A 4" x 4" wood treated post (which measures
3½" x 3½") will slide inside the vinyl post to
support the weight. Most of the time, your posts
are installed after the roof is in place. Usually,
there is a beam the post can be attached to.
Following are steps needed to install this post
system. We do realize you can run into many
different situations at the job site. In those cases,
field modifications may be needed.
Step 1:
Cut vinyl post and wood post to size. To
determine wood post length, stack (2) top/bottom
support post mounts and measure distance
between mounts and beam. To determine vinyl
post length, measure distance between floor and
beam and deduct 1". This will ensure no weight
bearing on the vinyl post. NOTE: On wood,
make sure there is structural strength to support
the weight of the roof.
Step 2:
All material will need to be applied to the post before installation. Slide post
flairs over top and bottom of post. Slide wood post inside vinyl post. Insert a
post support mount on each end. The post support mount can be screwed to
the wood post if desired (screws not included).
Step 3:
Slide post assembly into position. Insert (4) screws
into each mount (screws not provided). Slide post
flairs into position. Tabs will snap-lock into post
support mounts. Flairs may be glued if desired
(glue not included).
WARNING: Excessive glue may run
down post. Hold top flair in place until
glue is cured.
4" x 4" Wood Support Posts - For Decks
Note: The strongest and least expensive way to apply a 4" x 4" vinyl post to a deck is
to EXTEND your wood 4" x 4"'s above the deck approximately 24".
Following are steps to use when building a frame deck or working with an
existing wood structure.
Step 1:
When building a new deck and using 4" x 4" wood posts to support the
wood structure, layout your post setting so it works out for both wood frame
structure and length of railing sections you plan to install.
Step 2:
Set all wood posts leaving approximately 24" of the
post(s) above determined height of floor or
Contact point of purchase for questions
Top/Bottom
Post Mount
Roof
Beam
Top
4" x 4"
Post Flair
Wood
Support
Post
4" x 4"
Vinyl Post
4" x 4" Wood
Post Total
Length
(Cut to fit between
top & bottom
4" x 4" Vinyl
post mounts)
Post
Top/Bottom
Post Mount
Bottom
Post Flair
Vinyl post over 4" x 4" wood
support post to provide structural
strength
Top
Mount
4" x 4" 4" x 4"
Vinyl Vinyl
Post Post
Bottom
Mount
4" Post Support Mount
(Use on both top and bottom
of 4" x 4" wood post.)
deck surface. NOTE: 24" of wood post is
sufficient support for 36" or 42" vinyl
railing systems. The higher the wood
post is above the floor, the greater the
chance for the wood post to warp.
If vinyl posts are desired below the floor
joint, slide these posts on before the
support board is attached. NOTE: These
vinyl posts will go from the ground to
the bottom of the joist support board.
Step 3:
After wood frame and deck flooring are
installed, slide vinyl post over wood post.
Slide post flair on at this time.

Option: Vinyl Posts on Existing Deck

When vinyl posts are to be attached to an existing wood deck and no wood
posts are protruding above the deck floor, use an aluminum post mount (see
instructions for wood surface) or install a 4" x 4" wood post as follows:
Step 1:
Cut a 4" x 4" hole in existing floor right inside joist support board. Install a
wood 4" x 4" post to go to the bottom of the joist support board. This will
extend above the deck floor approximately 24". Attach wood post with
screws or bolts through support board and into wood post. After deck
flooring is installed, slide vinyl post and flair over wood post.

Level Railing Applications

Step 1:
Hold each rail against posts. Position so there will be the same baluster
spacing on each end of the rail. Mark top and bottom rails where they need to
be cut. Cut rails to length. NOTE: Make sure rails are cut with a
gap on each end between rails and posts.
Post
Center the top and bottom rails between the posts
(Shown with holes for vinyl baluster)
Step 2:
If installing a section longer than 4', a railing support is required. It needs to be attached to the bottom rail at this
time.
Railing Support Block
Vinyl: Find center of bottom rail. Screw
plastic wood block to bottom side of rail.
Slide vinyl extrusion over plastic wood
block and screw to block with (2) screws
(refer to diagram). All screws are provided
for the railing support system.
Step 3:
Slide a mount over each end of the rail (make sure profile side
of mount is down). Place bottom rail in position. Standard gap
from floor is 2".
Center and screw mounts to post with 1¼" screws (screws provided). Note: If
using 4" IRC or IBC post mounts use 1" screws, provided in the post
mount box.
Insert (2) ¾" self-tapping screws through location tabs (screws provided).
IMPORTANT: Continue tightening until inside channel is drawn against
inside of rail. Insert vertical baluster into bottom rail holes. If there are notched
balusters, they need to be placed in
4" x 4" Vinyl Post
(Length above decking)
4" x 4" Wood Post
Post Flair
Outside Deck
Support Joist
4" x 4" Vinyl Post
(Length between ground
level & bottom of joist)
Ground
Level
Vinyl post over a 4" x 4" wood support
Post for deck applications
Top View of Rail
Post
Rail
Aluminum: Find center of bottom rail.
Insert screw into aluminum support and
screw to bottom rail. Turn support to
adjust height.
TRX Top Mount
Continued on backside
99675 DSI 08/19
4" x 4"
Vinyl Post
(Approx. 24"
above decking)
Decking
4" x 4"
Wood Post
4" x 4"
Vinyl Post
"
/
1
16
TRX Bottom Mount