Unpunched smooth surface grating is also available for special applications. The aluminum grating is made from type 5052 aluminum with a thickness of 0.080". United Interlock steel grating is made from pre-galvanized steel which conforms to a G-90 thickness designation per ASTM A653. This prevents dirt, debris, ice, and snow from building up on the surface and allows light and air to pass through. Punched Interlock Grating has an open area of 42% for 9" grating and 35% for 6" grating. Dieformed teeth in the transverse ribs give you 360° of shoe-gripping traction even when the grating is wet, oily, muddy, or icy. Made from hot-dipped galvanized steel in web depths ranging from 2-1/2 up to 8, ProX Header snaps into place using pre-installed clips providing a smooth. Anti-skid is the ideal choice when safe walking conditions are important. Two standard surfaces are available: slottedsmooth and anti-skid. The male-female legs of the roll-formed grating interlock securely, and double-male legs provide a safe finished edge for end planks. United Interlock Grating is engineered with a strength-to-weight ratio that allows it to withstand substantial loads while being easy to handle.
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