Installation Guide
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
119
TREX
®
 SIGNATURE™ RAILING
HOW TO INSTALL TREX
®
 SIGNATURE™ COCKTAIL STAIR RAILING
TREX
®
 SIGNATURE™/CONTINUED
Cutting Post and Post 
Sleeve and Attaching 
Deck Board to Top Rail
8.   Cut post and post 
sleeves at proper angle 
so these are flush with 
the top of the top 
brackets and/or top rail 
cover. BE CAREFUL 
NOT to CUT brackets.
9. Place deck boards over 
top rails. DO NOT use 
Enhance (scalloped 
profile) or Escapes 
deck boards for top rail. 
PLACE DECK BOARD 
ON TOP RAIL TO CHECK 
FOR PROPER FIT AND 
RAIL CLEARANCE 
AT BRACKET 
LOCATIONS. DECK 
BOARD MAY REQUIRE EITHER A NOTCH CUT ON 
THE UNDERSIDE OR SLIGHT PLANING ON THE 
UNDERSIDE TO ALLOW DECK BOARD TO CLEAR 
TOPS OF BRACKETS AND SIT FLUSH ON TOP OF 
POSTS AND RAILS. Attach boards on each post with 
Trex-recommended composite screws (quantity of 2 
per each board end).
10. Secure boards to top rail 
using Trex
®
 Signature™ 
Cocktail Bracket (sold 
separately). Ensure 
that there is a bracket 
at each end of the 
stair railing section, 
then space brackets 
approximately every 24" 
and attach with 4 screws 
provided.
NOTE: Pre-drilling before attachment is recommended.
11.  Use scarf cut for
  posts where two deck 
  boards meet. 
NOTES:
» Leave 1/8" (3 mm) gap 
between deck boards.
» Deck boards can 
overhang end of last 
post maximum 1/2" 
(13 mm).
12.   Where deck board 
terminates at top of 
post horizontal deck 
board, PREDRILL and 
toenail two approved 
composite deck screws 
as shown into post, 
being careful to avoid 
hitting stair bracket.
Attachment of Bottom Bracket Covers and Skirts
13.  See instructions on page 110.
NOTE: Top Bracket Covers are not attached in this 
configuration.
8
Post
Top stair rail
Upper 
bracket
1
1
9
2
11
1
10
2
12










