The puzzle mat easily accomodates a 1000 piece puzzle. It is larger than I imagined, but probably needs to be this size. An nice added feature that I did not realize when I ordered it is that the ends of the carboard tube are removable. Inside, additional unplaced pieces can be stored in zip-locked plastic bags organized as you wish. This is a nice feature since we had many unplaced pieces that we had organized by shape, color, etc. and they would not fit into the rolled puzzle space available on the mat. It's a nice mat, but I think it's overpriced.