The image below provides the dimensions of our tracks. The bolt holes are 6" on center.
CapNuts dimensions are 1/2” tall x 1-1/4” diameter. Fits #10-32 screws
PlusNuts dimensions are 10-32 Flat Head, Rivnut ID# S10P 175
When installing the tracks only drill every other hole, DO NOT DRILL EVERY HOLE
You may also be interested in this article, Which Landing Pad and tower do I use with the tracks?
If you have additional questions, you can contact customer service here, or by calling us at 888-925-4621 M-F from 7 to 4 PT.