i have the highest quality plexiglass for sale. i assume it would be an amazing material for you to build a box
im in utah and have this up on craigslist. i have 11 sheets. they are about 2 feet wide. the sheets are 1/2 inch thick and weigh a ton. you would make an indestructable sliding surface.
http://saltlakecity.craigslist.org/mat/763729239.html
A quick word on blocking ads
It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.