Understanding Board Feet to US Pecks Conversion
A board foot is the customary lumber unit of 144 cubic inches, about 2.360 litres, used to measure and price sawn timber. A US peck is a dry-volume unit equal to a quarter of a US bushel, roughly 8.810 litres, traditionally used at markets for apples, potatoes, and other produce. Converting board feet to pecks translates a woodworking volume into the older agricultural dry-measure scale.
Conversion Formula
To convert Board Feet to US Pecks, multiply by this factor:
Step-by-Step Example
Convert 25 Board Feet to US Pecks.
How to Convert Board Feet to US Pecks
Convert a lumber volume into the dry-measure peck in one step.
- Record the board feet: Note the timber volume, each board foot being 144 cubic inches.
- Multiply by 0.2678547: This yields the equivalent number of US pecks.
- Apply to the example: For 25 board feet, compute .
- Report the result: You get 6.69637 US pecks.
Board Feet to US Pecks conversion table
| Board Feet (board-foot) | US Pecks (pk) |
|---|---|
| 0 | 0 |
| 1 | 0.2678547 |
| 2 | 0.5357093 |
| 3 | 0.803564 |
| 4 | 1.071419 |
| 5 | 1.339273 |
| 6 | 1.607128 |
| 7 | 1.874983 |
| 8 | 2.142837 |
| 9 | 2.410692 |
| 10 | 2.678547 |
| 15 | 4.01782 |
| 20 | 5.357093 |
| 25 | 6.696366 |
| 30 | 8.03564 |
| 40 | 10.71419 |
| 50 | 13.39273 |
| 60 | 16.07128 |
| 70 | 18.74983 |
| 80 | 21.42837 |
| 90 | 24.10692 |
| 100 | 26.78547 |
| 150 | 40.1782 |
| 200 | 53.57093 |
| 250 | 66.96366 |
| 300 | 80.3564 |
| 400 | 107.1419 |
| 500 | 133.9273 |
| 600 | 160.7128 |
| 700 | 187.4983 |
| 800 | 214.2837 |
| 900 | 241.0692 |
| 1000 | 267.8547 |
| 2000 | 535.7093 |
| 3000 | 803.564 |
| 4000 | 1071.419 |
| 5000 | 1339.273 |
| 10000 | 2678.547 |
| 25000 | 6696.366 |
| 50000 | 13392.73 |
| 100000 | 26785.47 |
| 250000 | 66963.66 |
| 500000 | 133927.3 |
| 1000000 | 267854.7 |
What is the Board Foot?
The board foot is a unit of volume used in North America to measure sawn lumber and hardwood. It represents a piece of wood one foot long, one foot wide, and one inch thick.
Definition
A board foot is defined as exactly 144 cubic inches — the volume of a board 12 in × 12 in × 1 in.
Equivalently, one board foot equals cubic foot, or 2,359.74 cubic centimetres.
Origin and History
The board foot arose in the 19th-century American and Canadian lumber trade as a practical way to price rough-sawn timber by wood content rather than by finished dimensions. Because a "1-inch" board and a "12-inch" width refer to nominal (pre-planing) sizes, the board foot standardized how mills, wholesalers, and builders quoted and sold lumber. It remains the customary trade unit in the United States and Canada today.
Law and Notable Facts
The board foot is recognized in U.S. and Canadian lumber commerce and standards, where large volumes are quoted in "thousand board feet" (MBF), with M denoting the Roman numeral for 1,000. Board-foot content is calculated from nominal dimensions, so a nominal "2×4" (actually about 1.5 in × 3.5 in when surfaced) is still counted at its nominal 2 in × 4 in size — meaning the buyer pays for wood removed during planing. Rough-sawn hardwoods are commonly measured in "quarters" of nominal thickness (4/4, 5/4, 8/4).
Real-World Examples and Conversions
- A board 8 ft long × 6 in wide × 1 in thick contains board feet.
- A nominal 2×4 stud 8 ft long counts as board feet.
- One thousand board feet (1 MBF) equals about 2.36 cubic metres of wood, a typical way to price bulk lumber shipments.
- One board foot equals roughly 2.36 litres, so a small stack of ten board feet holds about 23.6 litres of wood volume.
What is the US Peck?
The US peck is a United States customary unit of dry volume, equal to a quarter of a bushel, used for measuring fruit, vegetables, and grain. It sits between the dry gallon and the bushel in the dry-measure system.
Definition
The US peck is defined as one quarter of a US bushel, or 8 US dry quarts, equal to exactly 537.605 cubic inches.
With the bushel fixed at 2150.42 in³, a peck equals 2150.42 ÷ 4 = 537.605 in³ = 8809.77 cm³. The US peck is about 3% smaller than the imperial peck (9.09218 L).
Origin and History
The peck is an old English dry measure, attested since the 14th century and long used for grain and produce. Its US form is tied to the Winchester bushel retained from colonial England, while the imperial peck follows Britain's 1824 reform.
Law and Notable Facts
The peck endures in the tongue-twister "Peter Piper picked a peck of pickled peppers" and in US orchard sales, where apples are still sold by the peck and half-peck. It remains a legal customary unit defined via the international inch.
Real-World Examples and Conversions
- A peck of apples weighs roughly 10–12 lb and fills about 8.81 liters.
- 1 US peck = 8 US dry quarts = 16 US dry pints = 8.80977 L.
- 4 US pecks make 1 US bushel; 1 liter ≈ 0.11351 US peck.
Frequently Asked Questions
How many US pecks are in one board foot?
One board foot equals 0.2678547 US pecks. A peck is about 8.810 litres, larger than a board foot's ~2.360 litres, so one board foot is a fraction of a peck.
How do I convert board feet to pecks?
Multiply board feet by 0.2678547. For example, 12 board feet equal 3.21426 US pecks.
How many board feet make one US peck?
One US peck equals about 3.733368 board feet, the inverse of the conversion factor.
What is a peck used for?
A peck is a dry-goods measure used at farm stands and markets for produce such as apples and potatoes; four pecks make one bushel.
Is a peck a US-only unit?
The US peck (~8.810 L) differs from the older imperial peck (~9.092 L), so the value here applies specifically to the US dry-measure system.