180GSK Oak, Poplar, Primed Poplar Finger Joint - 1/2” X 11-1/4” Ultra-Light Fiberboard - 5/8” X 11-1/4” 22CBSK Oak, Poplar, Primed Poplar Finger Joint - 11/16” X 11-1/4” Ultra-Light Fiberboard - 1/2” X 11-1/4” 18BSK - 1/2” X 11-1/4” Poplar, Primed Poplar Finger Joint 22EBSK - 11/16” X 11-1/4” Poplar, Primed Poplar Finger Joint