Supplier: Global T Trading (M) Sdn Bhd The 4 X 1 Box Rib is designed with 1" high ribs on 4" centres, specially engineered for maximum structural stiffness. As a standard for appearance, it is stucco embossed. Aluminium thicknesses available: .032", .040", and .050". *Alcad. Non-clad is available but may extend lead time. *Alcad is an aluminium which is produced by metallurgically bonding 7072 aluminium alloy to both sides of a 3004 alloy core. The results in superior corrosion resistance. Features: Finish: Stucco Embossed Alloy: 3004 - 7072 Alclad Widths: 45-5/8" (44” Coverage) Lengths Stocked: 8', 10', 12' in .032 and .040. Custom order lengths also available .050 available upon request