Instructions / Assembly
Have Questions?  NOTE: Construction methods are always improving. Please ensure you
1–800–BUY–TREX  have the most up-to-date installation instructions by visiting: trex.com TESR-0720
Have Questions?  NOTE: Construction methods are always improving. Please ensure you
1–800–BUY–TREX  have the most up-to-date installation instructions by visiting: trex.com  TESR-0720
TREX ENHANCE
®
 STAIR RAILING
Installation Instructions
HOW TO INSTALL STANDARD STAIR RAILING/CONTINUED 
TREX ENHANCE
®
Measuring and Cutting Top Stair Rail 
9.  Place two balusters into lower stair rail at each end closest to
the post.
10.  Position top stair rail onto balusters, ensuring balusters are fully
seated in rail (position to side of post), and ENSURE balusters
are spaced evenly AND parallel with posts.
11.  Mark top stair rail at post intersections.
12.  Remove rail, and cut along the
marks.
NOTE: Verify the height of the 
railing before installing rail to post 
to ensure this meets proper height 
requirements for stairs.
Attaching Brackets on Top Stair 
Rail
13.  Snap the top stair adaptor
bracket (labeled TOP) to the
standard bracket. Repeat for
remaining bracket.
TIP: Use a dap of super glue when snapping bracket together to 
help stabilize bracket when installing.
14.  On the TOP RAIL, attach the assembled stair brackets to the
side WITH the baluster holes. Attach both brackets using three
#8-18 x 1" self-drilling screws (provided).
Installing Balusters
15.  Slide remaining balusters into
bottom rail until balusters are 
fully seated.
Attachment of Top Rail
to Post
16.  Place top rail onto balusters,
allowing the top rail to rest on
the surface of the balusters.
NOTE: For attachment of 
brackets to posts, use at least a 
3" long drill bit or extension so as 
to not damage sides of rails when 
installing. 
TIP: Pre-drill prior to screw installation using a 7/64" 
drill bit. 
17a. Attach top stair rail bracket to upper post using two 
#8-10 x 3" screws (provided). 
17b. Attach top stair rail bracket to lower post using two 
#8-10 x 3" screws (provided).
IMPORTANT NOTE: SET DRILL TO LOW SPEED AND LOW 
CLUTCH SETTING WHEN INSTALLING THESE SCREWS. DO 
NOT USE IMPACT DRIVER.
Attaching Post Caps and 
Installing Foot Block 
18.  Secure post caps with
silicone or PVC adhesive.
Attach foot block per foot
block instructions.
NOTE: Clean up any excess 
adhesive before it dries. 
9
11
1
1
14
42
12
15
17b
13
10
2
18
1
17a
16








