This is a nice heavy duty mat but the size of it should be in the description. I counted the squares on it and figures it was 12 x 26. But the squares are 1/2 inch so it is only 6 x 13. I was rather dissapointed in that.
I seen this in person before I bought it and the craft knife made by BoBunny. I have used the fire out of it and would recommend it highly. It is easy and resourceful to grab and make cards, paper strips, and sometimes I cover it with tin foil to hold things when allowing drying time. There is alot of uses for this handy cutting mat and I would buy it again and the craft knife it is awesome become the blade clicks in when your done and prevents someone from getting cut. It is like using a ball point pin except it is a knife. So think about the ideals I have given you and don't think twice. Buy it!