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Competitive Metals offers expanded metal and grating in a variety of opening sizes and thicknesses to accommodate a variety of applications ranging from outdoor furniture, to irrigation box security enclosures, to trailer ramp traction surfaces to machine guards, elevated walkways and more. Expanded metal sheets are produced by slitting and stretching sheet metal to create diamond-shaped openings. The openings in the steel sheets allow for air, liquid, sound, and light/visibility to pass through. Expanded metal grating is used for applications where strong, low-cost, open flooring is required as seen on catwalks, machine platforms, and stair treads. The long way of the diamond runs parallel to the length of the sheet with grating.