The Universal Ridge Cap is a little over 7" on each side.
Universal Ridge Caps can only be ordered in 10'-6" lengths.
Universal Ridge Cap will fasten to the top of the major panel ribs on both sides of the ridge through the outside closure (if used). Stitch Screws can be used to fasten the U-Ridge.
This Ridge can be used with Ridge Vent materials but there are a few options. To find out the best option for your application you'll need to talk to a person at the Home Depot ProDesk. Flashings, Accessories and Panels can be Special Ordered there.
I only used this material for the roof ridge cap. It works excellent and I recommend it.