Pedestrian Pultruded Grating Safe-T-Span(r) Isopthalic Polyester Fire-Retardant Resin (ISOFR) Span 8 ft. 4 ft Width T2515 Surface Grit-Top Dark Gray Bearing Bar Height 1-1/2 In. Bearing Bar Spacing Center-to-Center 2 In. Bearing Bar Width 1.50 In. 1-1/2 in Depth None Mesh Pattern Mesh Size None Max Temp 150 Degrees F