Why would a sheet of polycarbonate advertised to be 12" x 12" end up being delivered as 11-3/4" x 11-3/4"? This sheet is 1/16" thick. No saw or blade will consume 1/4" from each dimension for this thickness of material. Measurements are a complete misrepresentation, and this misrepresentation is doubly intentional: you short-cut the original material, then you bait and switched when filling the order. The only people who purchase in these sizes and quantities are those working on projects where dimensions matter. I would be concerned about trimming if too much material was provided, and thankful for the opportunity, but what am I supposed to do with too small a piece? There is no market standard that makes this misrepresentation, this theft, tolerable. Hey, you're my first negative review! I hope you felt it was worth it!