Abstract: A wood paneling product for assembly on a wall. Individual pieces of solid wood are joined end to end and side to side by complementary tongue and groove configurations which provide coplanar wood surfaces between raised finished panel sections. The specific joint configurations insure maintenance of a flat panel and accommodate the normal shrinkage and expansion encountered in wood products. A maximum wood thickness is maintained throughout the panel area to further insure against undesirable warping and bending. The end joints have a minimum tongue thickness which permits the boards to be joined end to end without a backing member being located behind the joints.