PS if you know where I can find a 10 1/2 " square ruler (other then the "Omnigrip") please let me know, thanks![/QUOTE]
A glass shop can cut plexiglass for you - stress accuracy and they're not good for curves
My glass shop closed, then I read on the Board about Lowe's.
Not all locations have the machine to do it
If they have the machine, you buy a 24" square of plexiglass and they will cut it.
Make sure to ask them to have the machine cut in both directions (you'll get smoother edges)
For $24 I got two 8 1/2" squares, a 7" and 7 1/2" plus 2 others I can't remember.
The extra piece turned out to be 3" x 9" and I've actually used it.