Boldly corrugated for extreme drama. Rib Cladding, in Western Red Cedar, is an exciting new product from Cedar Sales. Available in overlap or tongue and groove profiles, Rib Cladding is a modern alternative to corrugated iron. It balances the boldness of defined ridges with the natural beauty of timber. Rib Cladding uses perfectly even furrows to produce dramatic shadows and highlights. Use horizontally or vertically.