Fiberglass Bar Stair Tread Material Fiberglass Product Type Pultruded Stair Treads Top Surface Texture Gritted Resin Type ISOFR Nosing Surface Gritted Tread Depth 10 1/2 in Tread Width 2 1/2 ft Bearing Bar Thickness 0.6 in Bearing Bar Height 1.5 in Bearing Bar Spacing 1.5 in Color Yellow With Black Nosing Standards OSHA Approved Maximum Temperature 150 Degrees F Type I6015 Mesh Pattern Rectangular Mesh Size 1 1/2 x 6 in Shape Bar Stair Tread System of Measurement Inch