Quote Originally Posted by Frank S View Post
The wire idea is not a bad one, but you really don't need the wire, just score a line with a box knife then rip the sheet by holding down 1 edge and pulling up on the other.
That is how I acquired a 6" scar on my lower leg. Pull up the sheet to rip and step forward to progress. After awhile, you can rip a sheet following a sharpie line without needing to score the sheet. A moment of inattention however, and that ripped edge is like a razor blade. I felt it bounce off of my shin bone, but it was so sharp, there was no pain. I used to put up metal buildings in Texas "Pakastani style" wearing shorts.....but not sandals. Would not change a thing.