When I get a pattern or kit that doesn’t have a cutting diagram I sketch it out on graph paper. You can figure how many strips you need to cut by dividing 40” (thats the number I use for a WOF) by the size of the piece you need to cut. By the time I’m done with a pattern there’s scribbling all over it, but I use a Frixion pen and can iron all the marks away if I chose to.