SHADOW-RIB serves as an attractive and cost efficient architectural wall panel. It covers 36". It is composed of four major reversed ribs 12" on center and 1 1/4" deep. The higher rib provides the extra strength that is needed for longer spans on industrial jobs and the deeper shadow line provides a unique architectural appearance. Shadow-Rib is available in 26 ga., 24 ga., and 22 ga., in painted, or bare galvanized steel G-90 coating conforming to A.S.T.M. A653-98 SS Grade 50 (50,000 lb. min. yield strength) or galvalume coating conforming to A.S.T.M. A-792-99 SS Grade 50 (50,000 lb. min. yield strength).