The Nordic Ware Perforated Full Sheet has a perforated grid design that provides even ventilation and helps produce crisper, flakier food than traditional sheet pans. The pan is made from aluminized steel that holds up to commercial-sized ovens. This pan can accommodate larger batches of baked goods like cookies or content without crowding the sheets. This bakeware is perfect for use in both home and commercial kitchens alike. 1.0 inches (H) x 26.0 inches (W) x 18.0 inches (D)