There are a number of models of light-duty Silverados and Sierras, including the half-ton, SS, and Hybrid. The light-duty trucks generally use the 1500 name. They are available in three cab lengths, 2-door standard/regular cab, 3 or 4-door extended cab, and front-hinged 4-door crew cab. Three cargo beds are available, including a 69.2 in (1757.7 mm) short box, 78.7 in (1999 mm) standard box, and a 97.6 in (2479 mm) long box. The short box is only available with the extended or crew cab, and is the only option on the latter.