A carpenter in Waltham is a skilled craftsperson who performs carpentry and works with timber to construct, install and maintain buildings, furniture and other objects. His work may involve both manual and outdoor labor. Carpentry skill is gained through experience and study as there are no formal training requirements in Waltham. There are different types of carpenters depending on their skill sets: finish, trim, ship, scenic, formwork carpenters, besides a cabinetmaker, a framer and a luthier. The work primarily involves furniture making, fine woodworking, model-building, instrument making, joinery, molding and trimming, installations, repair techniques, and working on skeletal structures and frameworks of buildings.