Originally Posted by judyyoungs
Thank you for all the suggestions. My mat is long enough but is not 24" deep. I think I will check with our glass cutter here to see if I can get a piece of plexiglass cut, if he doesn't my arm to do it. I think several of your suggestions might work. I really appreciate your help.
Update!
I called the local glass cutter, and he cut me a piece of 3/32 plexiglass 24 1/2" square for $20. I don't need any lines on it and will be using it again so I think I got a good deal. Thank you again for all your suggestions.