Which term best describes the unit used to price rough lumber?

• A. board ft
• B. board foot
• C. linear ft
• D. square ft

Answer: (A)

Pricing rough lumber uses a unit that captures its overall wood volume, not just a length or an area. That unit is the board foot, often written as board foot or abbreviated board ft. One board foot represents a piece that is one inch thick, one foot wide, and one foot long, so the price is quoted per board foot. In practice you estimate it by multiplying the piece’s thickness in inches by its width in inches by its length in feet, then dividing by 12. This approach makes sense because lumber comes in many thicknesses and widths, and the value depends on the total amount of wood, not just how long a piece is. Units like linear feet or square feet only measure length or area and don’t account for thickness, so they don’t reflect the quantity of wood available.