Carpenters cut and shape building materials such as wood, steel, or plaster to construct, install, or repair structures. On residential and commercial projects, carpenters may install framing, insulation, roofing, drywall, and flooring. In residential construction, they may also have to do more intricate work such as trim detail and cabinetry. On the other hand, building and installing concrete formwork and bracing are typical projects for industrial carpenters.