Based in Rockville, Maryland, Capitol Iron Works specializes in custom ornamental metalwork projects based on unique design ideas, working with ferrous and nonferrous metals, such as stainless steel, aluminum and bronze. The company also works with structural steel and glass. Some of the most common projects include fabrication and installation of architectural railings, stairs, handrails, glass and cable railings, steel fencing, balconies, canopies and automatic gates.