Only a couple. I bought a cheap 23x23 when I started quilting and the rotary cutter I bought came with like a 4x12 (something like that) cutting mat. Think the reason why I only have two is when I tried rotary cutting I couldn't get the hang of it, got turned off by it, and stuck with the scissors. But I picked up rotary cutting again (only binding strips at the moment) so I might buy a new cutting mat.