I too am in the market for a big mat so this is interesting. When Martha Stewart crafty things came to Michael's I used a 40% coupon for her big gray mat with 1/2 inch grid marks, that folds in thirds. It works great for cutting, but the seams where it folds are coming apart. I want to replace it with something bigger than the big green mat. Our JoAnn's is opening March 9th so I'm going to wait for coupons and maybe give the white one a try.