I measured the twister template/ruler I have. It's 3 1/2" x 3 1/2". If you come back from each corner by 3/4", then make diagonal lines from those points you will have the markings for the twister. For something like the twister If you really want that pattern to turn out right, it has 4 non slip grips that also help to elevate it slightly. For the larger template I don't know what the dimensions would be. Probably the same but no math whiz here. I would spring for the template.