Help please. I'm spatially challenged and just can't work out how to cut a backing from a large piece of fabric. The fabric is approx. 108in by 80in. I want a backing measuring 72in x 61in. My largest cutting board is 35in x 23in. I have a ruler that will allow me to cut the length of the board. I've been trying to work out how to fold and cut the fabric, but it's beyond me, and I'm worried that I'll ruin it by making the wrong cut - have managed in the past to end up with 2 pieces! Folding the fabric is also proving difficult, as I'm on my own, don't have enough space to lay it out and I think it's not been cut anything like straight.