Conway Cleveland 3-Line Lumber/Board Rule, Model 112

Rule shaft 1” x 24” long For 8’, 10’, 18’ and 12’, 14’, 16’ lumber lengths. Vertical one-half foot markings. 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.