The Carpenter is probably the most widely known of the building trades craftsperson for two reasons: Carpenters are members of the largest group of building trades workers and are employed in almost every type of construction activity. Carpenters cut, shape, fasten wood and similar materials. They erect wooden framework in buildings including sub-flooring, partitions and rafters. They install molding, wood paneling, cabinets, window sashes, door frames, and doors and hardware, as well as build forms for concrete work, building stairs and laying floors. They use a wide variety of power and hand woodworking tools.