Free Shipping

on orders over $99

Worry-free Returns

365 day return policy


Add a decorative touch to 4 in or 5 in vinyl posts with these decorative Ball Post Caps by Durables. These sphere-topped post caps add elegance to your fence or deck posts and are available in Khaki, Tan, and White.

Unsure about your size? Measure your posts carefully and use our Post Cap Diagram to understand critical dimensions and ensure a proper fit.


DecksDirect # 5121

Level Railing Installation Instructions (441 KB) 

Stair Railing Installation Instructions (5.82 MB) 

ColorsKhaki, Tan, and White
Pack SizeEach
Post Cap Opening Size4-1/16 in or 5-1/16 in
Material TypeVinyl


(width x depth x height)
4-1/16 in = 4-1/4 in x 4-1/4 in x 5 in
5-1/16 in = 5-1/4 in x 5-1/4 in x 6-5/8 in
Ball diameter4-1/16 in = 3.818 in
5-1/16 in = 4.695 in
Inset Measurement 11/16 in
Included AccessoriesNone
WarrantyView Durables Warranty Information
Durables Heavy Duty Post Mount
Starting at: $150.99
Durables Vinyl Column Wraps lend a clean, polished look to your space
Starting at: $127.99
Vinyl post wraps are perfect for porches and patios.
Starting at: $147.99
Low Voltage LED Under Rail Strip Light by LMT Mercer installed under railing
Starting at: $60.70
Flush Warm White LED Riser Light by LMT Mercer - lit
Starting at: $7.99

Reviews & Questions