A1011 Carbon Steel Rectangular Grating Material Carbon Steel Material Grade A1011 Overall Height 1 1/4 in Overall Width 24 in Overall Length 8 ft Cross Bar Spacing 4 in Bearing Bar Spacing 1 3/16 in Bearing Bar Thickness 3/16 in Top Surface Smooth Weight 144 lb Application Driveway Drains Floor Drains Storm Water Drains Trench Drains Finish Carbon Steel For Use Indoors/Outdoors Yes Rating @ Unsupported Length 1 480 lb/sq ft @ 2 ft Shape Rectangular Grating