Installation Guide
Page 6
INSTALL TOP RAIL AND POST CAPS
• Measure and cut Top Rail to length. Trim both ends for a clean cut. 
• Attach Post caps using exterior grade caulk applied to the underside of the cap.
8
Cap
Top Rail
Pre-drill 3/16” 
#8 x 1 3/4” 
Coated 
Screws
Caution: Screws must be 1 3/4” 
so they won’t go through the 
Top Rail on straight rail sections.
Installing AZEK Rail with Balusters










