I bought this to put in a basement slab floor. I went for the 3/4" so I could do longer runs to reduce the number of loops. This stuff is hard-core. I had to recruit my wife to help roll it out ahead of me. I'm not complaining, I'm impressed with how stiff and thick walled it is. Just be prepared to wrestle a bear when you go to install it. The shipping was incredibly fast, and the price was unbeatable.