Installation Guide
102
SIGNATURE RAILING
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
HOW TO INSTALL SIGNATURE COCKTAIL STAIR RAILING
TREX SIGNATURE/CONTINUED
Cutting Post and Post Sleeve and Attaching
Deck Board to Top Rail
9.   Cut post and post 
sleeves at proper angle 
so these are fl ush 
with the top of the top 
brackets and/or top rail 
cover. BE CAREFUL to 
not CUT brackets.
10. Place deck boards 
(DO NOT use Escapes 
or Contour deck 
boards for top rail) 
over top rails. PLACE 
DECK BOARD ON 
TOP RAIL TO CHECK 
FOR PROPER FIT AND 
RAIL CLEARANCE 
FIRST 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).
11. Secure boards to top 
rail using 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: Predrilling before attachment is recommended.
12.  Use scarf cut for 
  posts where two deck 
 boards meet. 
NOTES:
» 
 If installing in weather 
below 40°F (4.5°C), 
leave 1/8" (3 mm) gap 
between deck boards.
» 
 Deck boards can overhang 
end of last post
maximum 1/2" (13 mm).
13.   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 Bracket Covers and Skirts
14.  See instructions on page 100.
NOTE: Top Bracket Covers are not attached in this 
confi guration.
9
Post
Top stair rail
Upper 
bracket
1
1
10
2
12
1
11
2
13










