How is a board foot defined?

How is a board foot defined?

• A. One board foot equals 1 meter by 1 meter by 1 centimeter.
• B. One board foot equals 2 inches by 12 inches by 12 inches.
• C. One board foot equals 1 foot by 2 feet by 1 inch.
• D. One board foot equals 1 foot by 1 foot by 1 inch.

Answer: (D)

A board foot is a unit of wood volume used in the lumber industry. It represents a piece that is one inch thick with a cross-section of one square foot, i.e., 12 inches by 12 inches. That makes the volume 12 × 12 × 1 cubic inches = 144 cubic inches, which is 1/12 of a cubic foot. So a board that is 1 inch thick and 12 inches by 12 inches in cross-section contains one board foot. If any dimension changes, the board feet change accordingly; for example, doubling the thickness (2 inches) with the same 12 by 12 cross-section yields two board feet. This standard is why the description that matches is 1 foot by 1 foot by 1 inch.

A board foot is a unit of wood volume used in the lumber industry. It represents a piece that is one inch thick with a cross-section of one square foot, i.e., 12 inches by 12 inches. That makes the volume 12 × 12 × 1 cubic inches = 144 cubic inches, which is 1/12 of a cubic foot. So a board that is 1 inch thick and 12 inches by 12 inches in cross-section contains one board foot. If any dimension changes, the board feet change accordingly; for example, doubling the thickness (2 inches) with the same 12 by 12 cross-section yields two board feet. This standard is why the description that matches is 1 foot by 1 foot by 1 inch.