I recently made leaders for my frame. I bought 3 1/2 yds of duck canvas from Wal-Mart for about $4.00 yd. cut it in 3 pieces and turned the edges over and sewed a zig-zag stitch alone the edges. They don't stretch at all and I'm sure the edges will never be ripped out or stretched out of shape like the ones that were on the frame when I got it.