When we buy 48" X 96" sheets from the manufacturer, they give us a tolerance of +/- 1/4" on length and width. We also use a 3/16" thick blade to cut heavy materials, which reduces the finished size of your sheet. Sheets under 48" X 96" will likely be under, not over. Get Price Cut to Size UHMW Polyethylene Sheet Cut-to-SizOkay UHMW Sheet.