To reduce the cost by arranging box-type housing devices respectively consisting of members such as side panels forming dowel holes on outer surfaces, a top panel, a bottom panel at prescribed intervals in parallel and mounting several stages of shelf panels by shelf panel receiving members using the dowel holes between the outer surfaces of opposed side panels to reduce member to be used.

The box-type housing devices 1 respectively consisting of the side panels, the top panel, the bottom panel, a back panel, etc., are provided with several stages of shelf panels inside and fixed with a door at a front surface through hinges at need. On the outer surface of the side panel, the dowel holes are formed at the prescribed intervals so as to install the shelf panels 2 in advance and the panels 2 are installed with dowels connected to the side surfaces of the devices 1. As these devices can be connected right to left, they can be constituted to be a side according to the size of a room and use. As the housing devices 1 themselves are used as the side panels link this way, members can be reduced compared with conventional housing members.