Powder-coated steel: Powder coated steel benches are often found lining entryways for different venues, like retail centers, medical facilities and country clubs. While powder-coat is a common finish on many commercial site furnishings, it is often featured on strap metal benches because of its anti-corrosive qualities and ability to strongly bond to heavy duty steel constructions. Powder-coated benches also come in a variety of colors and designs, from classic strap metal benches to extremely intricate designs.