US Patent 7134728 Modular chair

In one embodiment of the present invention, a chair assembly kit comprises at least two end pieces and at least two middle pieces including a first middle piece as a chair back and a second middle piece as a chair seat. The middle pieces each include at least two self-locking tabs, one tab each on two opposing sides. The end pieces each include at least two slots configured to receive the self-locking tabs on the middle pieces. The middle pieces selectively couple to the end pieces to form a chair, with the self-locking tabs being received in the slots and configured to selectively lock the middle pieces to the end pieces.