Leviton offers four metal enclosures - 14", 21", 28", and 42" - that address different capacities and provide expandable functionality for "wired" homes. These metal enclosures provide a convenient termination location for wiring home runs from wall outlets, and create a distribution point for voice, data, and video applications in a single family residence or multi-dwelling unit. Leviton offers a size to support all specifications and floor plans.