Carbon Steel Bar Grating, Material Carbon Steel, Material Grade A1011, Overall Height 1 1/4 in, Overall Width 24 in, Overall Length 6 ft, Cross Bar Spacing 4 in, Bearing Bar Spacing 1 3/16 in, Bearing Bar Thickness 3/16 in, Top Surface Smooth, Weight 113 lb, Application Driveway Drains, Floor Drains, Storm Water Drains, Trench Drains, Finish Galvanized Steel, For Use Indoors/Outdoors Outdoor, Rating @ Unsupported Length 1,480 lb/sq ft @ 2 ft, Shape Rectangular, Standards ISO 9001:2015