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Fitting Sizes

Confused about the chain link fitting sizes you see on this site? Often, a so called 2" post actually measures 1 7/8" across. This 1 7/8" measurement is called the post's Outside Diameter, or OD for short.

To experienced installers, professional contractors and manufacturers this is a second nature, but for the first-time DIY-er this fact can be a little confusing. We strongly urge you to measure your posts and rails before making a purchase. We've created this table to help you spot the sizing differences.

Still have questions? Call our friendly customer service team at (800) 878-7829 or email sales@chainlinkfittings.com today.

 

Post or Rail Size Outside Diameter (OD) Size
1 3/8" 1 3/8"
1 5/8" 1 5/8"
2" 1 7/8"
2 1/2" 2 3/8"
3" 2 7/8"
3 1/2" 3 1/2"
4" 4"
4 1/2" 4 1/2"
6 5/8" 6 5/8"
8 5/8" 8 5/8"