Sheet size :2438 x 1219 Coil width (mm):1219 & 1200 Stocked brands:Zincalume. Electro-galvanised Coating mass:Standard 163/m 2.Other coating weights are sourced as required.ASTM A480 Coil Thickness Tolerances - Rolled Alloys, Inc.Table A2.1 Permitted Variations in Thickness for Cold-Rolled, Narrow, Coil-Processedd Product as Coils and Cut Lengths Note 1 Thickness measurements are taken at least 3/8 in. [9.52mm] in from the edge of the product, except on widths less than 1 in. [25.4mm] the measurements should be taken at least 1/8 in. [3.18mm] from the product edge.