The Iron Worker is a craftsperson who fabricates, erects, assembles and installs fabricated structural metal products, usually large steel beams, in the erection of industrial, commercial or large residential buildings. The Structural Iron Worker erects the steel framework of bridges, buildings and other structures including metal storage tanks and overhead crane runways that support heavy equipment. The Reinforcing Iron Worker (rodman) sets steel bars of steel mesh in concrete forms to strengthen concrete in buildings and bridges. The Ornamental Iron Worker installs metal stairways, catwalks, gratings, grills, screens, fences and decorative iron work.