McNICHOLS&reg; Plank Grating Walkway, GRIP STRUT&reg;, Galvanized, ASTM A-653 G90, 14 Gauge &#40;.0785&quot; Thick&#41;, 10-Diamond &#40;24&quot; Width&#41;, 4-1/2&quot; Channel Height, Serrated Surface, 47% Open Area