Honey Rite Beekeepers Bee Hive Solid Style Bottom Board, 17 X 22-Inch It has cleats around 3 sides and the open 4th side creates a hive entrance Bottom boards are solid-style, assembled and unpainted They are made from plywood and fir or spruce Dimensions: 17 lx 22 wx 2 h Inches Weight: 5.00 Lbs. Bottom boards are solid-style, assembled, and unpainted. They are made from plywood