I purchased the 7.75' wide by 86' long roll. I cut three equal length pieces outside, then folded the sections and transferred to the crawl space. You can just feel the quality of this material. I don't see it breaking down or ripping like regular poly sheeting. I joined the sections with 4" OSB Sheathing tape (which I had lying around) using about an 8" overlap. The tape stuck great and I'm thrilled with the final result. This was the final piece of a full crawl space encapsulation using 2" pink foam board on the walls and joist ends and bringing the vapor barrier up about a foot over the foam and taping there.

Very strong durable vapor barrier. Highly recommend!!

Beautiful Product! Worth the money!!!!