Abstract: A lightweight, rectilinear, aluminum knock down dog box of attachable panels which store on suspension hooks. Each of six panels has an internal frame of square aluminum tubing. Each panel has rigid insulation between frame members and is covered by an aluminum alloy sheet skin on an interior side, and by either an aluminum alloy sheet or a polyvinyl chloride sheet on an exterior side. Adhesive bonds the skin to the internal frame and rigid insulating foam. Hinge halves connect the panels by pins vertically at each wall corner and clips at the top and bottom. The front panel has a vertically swingable, latched and lockable cage door. Sealing strips are used at panel joints and a sliding panel is installable for winter. Louvered ventilator panes are installed in the sidewalls and rear wall, the panes being supported by metal angle segments attached to the internal frame members.