OnlineMetals A36 Carbon Steel Perforated Sheet – Unpolished (Mill) Finish, Hot Rolled, 0.25" Staggered Holes, 0.12" Thickness (11 Gauge), 24"x48" – Building Supply

A36 steel offers good strength, high durability, easy weldability, and is the most common low-carbon structural steel. 0.25" Holes, ASTM A36, 0.12" Thickness, 11 Gauge, 24" Width, 48" Length, 0.375" Center to Center Hot Roll A36 is often used for architectural details, ventilating, and furniture