Bar Grating Surface - Carbon Steel Grating Serrated Span (Length) - Grating 72 In. Width - Carbon Steel 24 In. Height - Carbon Steel Grating 1.00 In. Finish - Grating Carbon Steel Bearing Bar Thickness 0.125 In. Bearing Bar Spacing 1.188 In. Cross Bar Spacing 4 In. Uniform Load Rating @ Unsupported Length 632 lb./sq. ft @ 2 ft. Bar Grating