Corrugated galvanized steel is a building material usually used for roofing. However, some designers, decided to use it on the wall or ceiling to create unique texture and industrial, utilitarian look. The easiest way to achieve this effect is to buy the galvanized steel paneling. It can be purchased at your local home improvement center or hardware store, and cut into the lengths you need. You can either nail it to the wall, or screw it into the ceiling. You can also use a matching wood trim to finish off the edge.