Board foot calculator
A board foot is 144 cubic inches of nominal timber: one inch thick, one foot square.
inches
inches
feet
Board feet
80.000
- Board feet per piece
- 8.0000
- Total cost
- 256.00
- Cost per piece
- 25.60
- Volume
- 0.188 78
- Linear feet
- 80.0
Show the working
- Nominal thickness = 2
- Nominal width = 6
- Length = 8
- Pieces = 10
- Price per board foot = 3.2
- Board feet per piece = 2 * 6 * 8 / 12 = 8
- Board feet = 8 * 10 = 80
- Total cost = 80 * 3.2 = 256
- cubic_inches = 80 * 144 = 11 520
- Volume = 11 520 * 0.000016387064 = 0.188 779
- Linear feet = 8 * 10 = 80
- Cost per piece = 8 * 3.2 = 25.6
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- board feet = thickness in inches x width in inches x length in feet / 12
Hardwood is usually sold by the board foot on rough dimensions; softwood is sold by the piece on nominal ones.