All Bauer Boards are made using premium quality half inch thick Birch plywood and come in 5 standard sizes along with 5 colors to choose from. Our sizes are measured in Inches and come as a Full Panel = 24 x 24, Half Panel = 24 x 12, Quarter Panel = 24 x 6, Eight Panel = 12 x 6 and also a Quarter Panel Square = 12 x 12. The colors to choose from are, Provincial, Navy, Phantom Gray, Sedona Red and Natural, which is No Stain. I also finish with 2 coats of a Semi-Gloss Polyurethane for protection.