A board foot is a unit of measurement for lumber volume, specifically equivalent to a piece of wood 12 inches wide, 12 inches long, and 1 inch thick. For example, a board measuring 6 inches wide, 24 inches long, and 1 inch thick also contains one board foot ( (6 x 24 x 1) / 144 = 1 ).
Understanding lumber volume is critical in construction, woodworking, and forestry. Accurate calculations help determine material costs, manage inventory, and ensure project success. Historically, it has provided a standardized way to trade and price lumber resources equitably.