Installation Guide
84
TREX
®
 SIGNATURE™ RAILING
INSTALLING TREX
®
 SIGNATURE™ POSTS AND/OR TREX
®
 SIGNATURE™ 
CROSSOVER POSTS ON WOOD OR CONCRETE/
CONTINUED
3. Insert (2) stainless steel barrier strips under 
mounting bolt holes. Use appropriate shims if 
posts are not plumb. Attach posts using four 
TREX SUPPLIED 3/8" x 3-3/4" (10 mm x 95 mm) 
wedge anchors. Reference SKU part number 
ALPOSTHWCONC for required hardware (wedge 
anchors, washers, and nuts).
NOTES: 
» When using hammer to tap anchors in place, keep 
threaded nut at top of anchor in order to not damage 
threads.
» Recommended torque for anchors is 20 ft-lbs.
3
BarrierBarrier
POST 
SLEEVES  
WILL 
NEED TO  
BE CUT
TREX
®
 SIGNATURE™  
RAILING CONFIGURATIONS
Cutting posts/post sleeves is NOT required.  
A.  Trex
®
 Signature™ post, pressure-treated post or Trex Post Mounts* with Trex   
Transcend post sleeves, or Trex Joist Mount Posts*
B. Trex
®
 Signature™ top rail
C. Trex
®
 Signature™ bottom rail 
D. Trex
®
 Signature™ balusters 
See page 86 for “How to Install Standard Railing".
*NOTE: See specific installation instructions for attachment of Trex post mounts or Trex 
Joist Mount Posts prior to installing any railing
.
Cutting posts/post sleeves is Not required.  
A. Pressure-treated post, Trex Post Mounts* or Trex Joist Mount Post WITH Trex
Transcend post sleeves.
  NOTE:  »   Trex® Signature™ Posts or Trex® Signature™ Joist Mount Posts cannot be 
used.
B. 2" x 4" (51 mm x 102 mm) lateral top rail
C. Trex
®
 Signature™ top rail 
D. Trex
®
 Signature™ bottom rail
E. Trex
®
 Signature™ balusters
F. Trex
®
 Signature™ Cocktail Rail Bracket** 
See page 99 for “How to Install Trex® Signature™ Traditional Railing".
Post sleeves will need to be cut. 
A. Pressure-treated post with Trex Transcend post sleeve 
NOTE:  »   Only for use with 4" x 4" (102 mm x 102 mm) post sleeve.
    »   Trex
®
 Signature™ Posts, Trex Post Mounts or Joist Mount 
      Posts cannot be used with Trex
®
 Signature™ Cocktail design. 
B. Deck board top rail.  NOTE: Enhance (scalloped profile) and Escapes 
cannot be used.
C. Trex
®
 Signature™ top rail 
D. Trex
®
 Signature™ bottom rail
E. Trex
®
 Signature™ balusters
F.  Trex
®
 Signature™ Cocktail Rail Bracket** 
See page 98 for “How to Install Signature Cocktail Railing".
A
B
C
D
A
B
D
C
E
F
A
B
D
C
E
F
Standard
Cocktail
Traditional
** Trex
®
 Signature™ Cocktail Rail brackets (sold separately) are for use with either Trex
®
 Signature™ Traditional or Trex
®
 Signature™ Cocktail 
designs. For a 6' section, use 4 brackets and screws provided, for 8' section, use 5 brackets and screws provided. 










