Product Info Catalog Hardware Metal Stock Sheet Stock Diamond Metal Sheet, 18-Gauge, 1/2 x 24 x 24-In. Diamond Metal Sheet, 18-Gauge, 1/2 x 24 x 24-In. Request a Quote UPC: 53538521219 SKU: 619189 Model Number: 11787 1/2" x 24" x 24", 18 Gauge, Diamond Metal Sheet, Cold Rolled, Weldable, Cut, Expanded & Flattened Into A Diamond Shaped Pattern.