30''x60''

I've only had this about a week but so far I'm really liking this mat!

Great mat and super fast delivery. All my questions were answered when I called.

Overall a Good Mat, Despite Shortcomings

Cons: material is pure PVC plastic, so it won't have quite the same feel as a self-healing cutting mat from an art store. It's thinner than conventional mats and more readily gets permanent cuts / scratches. Pros: lays flat the second you unroll it. It's the only cutting mat on the market that is 30" x 60". It's still better than cutting on a surface you care about.