This painted poplar coffered ceiling consists of B302 ( 3/4" x 5" ) crown and B209 ( 5/8" x 5 1/2" ) baseboard with B905 (3/4" x 2" ) step molding on the inside. The outside has B303 ( 3/4" x 3 1/2" ) crown stacked on top of each other with B204 ( 3/4" x 1 3/4" ) base cap.