Item Surface Plate Material Granite Application Grade Laboratory Color Pink Edge Style Flat Flatness 0.000200 in/0.0050 mm Grade AA Length 36 in Surface Size 36 in x 48 in 900 mm x 1200 mm Thickness 8 in Case Type Crate Flatness Unilateral Tolerance (In.) 0.000200 Flatness Unilateral Tolerance (mm) 0.0050 Includes Case No Standards ASME B89.3.7 2013 GGG-P-463c Surface Size (In.) 36 in x 48 in Surface Size (mm) 900 mm x 1200 mm Weight (Kilograms.) 599 kg 48 in