I am looking to so something a little outside the box. I want to make a groundsheet out of 1/8" EVA foam. My thinking is that it would replace my groundcloth and also serve as protection for my UL sleeping pad. From the looks of it if I did my math right, it should weigh in the range of 5oz. Does anyone know of a source I could get a 40"x80" sheet to give this a try?
Thanks Ben

