Industrial TolerancesINDUSTRIAL TOLERANCES FOR POLYETHYLENE Width: +/- ¼ Inch The above tolerances are industry standards which have been established by all major polyethylene products and poly bag manufacturers. FORMULA FOR WEIGHT/THOUSAND POLY BAGS (Width) x (Length) x (Mil thickness) divided by 15 = Weight/Thousands Bags Weight Per Roll/Case Not to Exceed 70lbs |