Abstract: A multi-layered, engineered-wood composite shake or shingle siding with weather-tight connections, edge-to-edge, between adjacent shakes or shingle siding planks or pieces. One or more water drainage grooves or channels may be machined or cut into the faces of underlap and/or overlap portions. A shake generally is delineated by a pressed-in groove or a machine-cut gap (e.g., “keyway”). For a shake near the end of a panel, a false keyway or partial keyway may be cut or machined into the end, thereby giving the appearance of a keyway when two ends are fitted together to form a lap joint. The number of shakes on a panel may vary.