A rail system (100) is disclosed which may be employed within a commercial interior (102). The rail system (100) comprises a series of primary-tracks (130) in a spaced apart configuration. The rail system (100) also comprises a series of cross rails (132) releasably interconnectable to the primary tracks (130). The rail system (100) permits electrical and mechanical interconnections and reconfiguration of electrical and mechanical interconnections, for various functional accessories and communications.