Conway Cleveland 4-Line Lumber/Board Rule, Model 400NS

Rule shaft 1” x 24” long, features a notched head. For odd and even lengths, 9’, 11’, 13’, 15’ lumber lengths and 10’, 12’, 14’, 16’ lumber lengths. For measuring board foot volume of dried lumber. Flexible hickory shaft and hardened, stainless steel head with sharpened pre-bent points for grabbing lumber. First 6” from head graduated to inches and eighths for measuring lumber thickness. Walnut wedge handle. Black graduations protected by polyurethane coating.