send me your info and the size of tyvek you are looking for...i think i have roughly 3 feet of the std width roll left from my groundsheet...i obtained for free so i will certainly share the wealth...and its pretty tough i imagine you'd get a few trips out of it...at least it would take nothing more than your sewing time to test

marknmielke@gmail.com
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I do it because I can...it also helps that you are not there...