Aluminum Perforated Sheet, Aluminum, 3003, H14, Rectangular, Appearance Pattern, 40 in Overall Length, Length Tolerance +/-0.125 in, 36 in Overall Width, Width Tolerance +/-0.125 in, 0.05 in Thickness, Thickness Tolerance +/-0.004 in, Gauge 16 ga, Center Spacing 0.25 in, Hole Diameter 0.188 in, Hole Pattern Staggered, Hole Shape Round, Fabrication Cold Rolled, Heat Treatment No Heat Treatment, Heat Treatable Not Heat Treatable, Mechanical Finish Mill, Yield Strength 22,000 psi