novicequiltergrandma

I've always had to cut mine on a small table. You need to have at least one straight side. Pick the "straightest" side and trim with scissors if you need to make is as straight as possible (however, you will cut the batting larger than needed, so it does not need to be perfect!) Using your longest ruler (mine is 24") measure to the opposite side where you want to cut and make a mark every 12 inches or less. If you have a really long ruler, you could make fewer marks. Now go to your cutting table. Be careful the batting is not being stretched. Now place your ruler so it is spanning 3-4 marks. They should be in a relatively straight line if you have not stretched the batting during your initial measurements. If way off, then re-measure and re-mark your batting. Now just connect the dots and cut.