A method of making a cabinet carcass using a pair of connectable box carcass framework members for the fabrication of non-panel constructed furniture carcasses. It simplifies the construction of a furniture carcass and uses but a minimum of tools and skill to produce a dimensionally square, precisely sized, box that accepts an abundance of aesthetic and functional options. The assembly is based on a pair of mechanical fastener connectable vertical and horizontal members that have connectable zipper channels, linear rabbets for the retention of side panels, screw busses, and open channels with series of spaced orifices therein for the passage of mechanical connectors.