A modular closet system provides reconfigurable closet capacity and an appearance of a customized closet in any of the configurations. The system includes at least two sideframes cooperating to define a space therebetween creating a closet module when assembled. A series of through holes on an inside surface of the sideframes are used to attach a variety of storage devices from the system's sides, which may be re-positioned by user design. When assembled, any of the fasteners used to attach the storage devices are hidden from a front view perspective of the system. Once assembled, the perimeter of the storage devices cooperates with the frames to block the view of the fasteners. Some embodiments may extend closet capacity by including a hanging rod system that connects two frame modules together via the through hole system on respective closet modules, which when assembled also blocks the view of any fasteners.