Quote Originally Posted by mondrota View Post
Ok, so I have 3 options now. I checked this foamex on ebay and it is much cheaper. I can drill holes and glue in t nuts at the bottom. I'm just a bit concerned about the rigidity of this material. It is a light foam material after all..
How about Rigid PVC BLACK PLATE/SHEET 1520mm x 1300mm X 25mm THICK

ebay item number: 152320149415

Machineable, tappable, solid!

A bit big for your purpose though? Maybe he would cut it??