www.bigmatrotarycuttingsurface.com Click on the big mat store and scroll down until you see a listing of different sizes. Think it comes with a 5-year warranty. Mine did. I had a 36x60 mat from JoAnn's years ago, but I found the rotary blades got dull quickly and had to be replaced more frequently. I switched to the big mat a few years ago. No regrets there.