Covered grating (SCH 52/52C_IFR) Covered grating (SCH 52/52C_IFR) Technical Table Dimensions (mmxmm) 1000x3000 1000x4050 Mesh (mm) 52x52 Clear span 26x26 Thickness (mm) 55 Beam thickness (mm) 5/7 Weight (kg/m2) 30 Colour Grey RAL 7004 Code: SCH 52/52C_IFR