I had an old mat I hated to throw out. So since I had an 18” wood disk & metal lazy Susan, (bought from Home Depot) my husband mounted them together to give me a rotary cutting pc. I padded it though for ironing. Instead of tossing the old mat, I cut it out to fit the round. pc. I just set it on top of the padded disk so it gives me a good rotary cutting mat. It doesn’t slide around so I did not glue it down. I just remove that to iron. I feel pretty clever for making a dual use of an old mat.