My dad recently gave me a huge (about 30' X 40') poly tarp that he had used as a temporary roof over his house/construction site while building. Parts of it have seen some hard use and show serious wear, but there's a portion of it (a roughly rectangular area about 19' X 13') that's in good shape.
I was wondering if it would be possible to cut a catenary tarp, Black Cat style, out of the good area. Would it work? Would I have to cut it into a hexagonal shape first, cut that in half, and then rejoin the two halves to make it truly catenary?
Aside from whether it would work, it this a good idea? On the downside, this thing is heavy as hell, and it's that typical baby-blue tarp color; I'll look not so much like a hammocker as a consturction site. I also imagine this thing is very loud in wind and rain. On the plus side, it's compltely waterproof and I got it for free.
In the end, I might just donate this thing. Maybe the local little league can cover their very tiny infields or something. But before I do that, I thought I'd ask: Any thoughts from the DIY catenary crowd?