pallet.design

What is a board foot?

Also called: board feet, bd ft, BF, FBM

Definition

A board foot is a unit of lumber volume equal to 144 cubic inches, a board 1 in thick, 12 in wide and 12 in long (about 0.00236 m³). Pallet board feet = thickness × width × length in inches ÷ 144, summed over every part.

In depth: Board feet and pallet weight

Pallet lumber is bought and priced by the board foot, so the board-foot total is the main driver of material cost. The formula:

board feet = thickness (in) × width (in) × length (in) ÷ 144

For metric parts, calculate cubic meters (mm × mm × mm ÷ 10⁹); 1 board foot is about 0.00236 m³, and 1 m³ is about 424 board feet.

Worked example: GMA-style 48 × 40

Group Parts Board feet
Top deck 5 × 5/8 × 3-1/2 × 40 in + 2 × 5/8 × 5-1/2 × 40 in 4.9
Bottom deck 3 × 5/8 × 3-1/2 × 40 in + 2 × 5/8 × 5-1/2 × 40 in 3.7
Stringers 3 × 1-3/8 × 3-1/2 × 48 in 4.8
Total 13.5

This matches a published PDS example. PDS does not subtract the notches.

Why it matters

Board feet times price per board foot gives lumber cost, and board feet times weight per board foot gives an estimate of pallet weight: PDS examples show about 4.4 lb/bf for green mixed hardwood and 3.2 lb/bf for green SPF. Board feet on a spec sheet are net: they exclude saw kerf, trim and rejects, so the lumber purchased is somewhat more.

On a spec sheet

PDS shows a volume per component group ("4.9 bd ft") and a total new lumber volume ("13.5 bd ft" or "0.0409 cubic meters"). Use the board feet calculator to check a design.

Frequently asked questions

How many board feet are in a pallet?

A GMA-style 48 × 40 stringer pallet has about 13.5 board feet using actual dimensions. Heavier or larger designs run higher.

How many board feet are in a cubic foot?

12. A cubic foot is 1,728 cubic inches, and a board foot is 144.

Do pallet board-foot counts use nominal or actual sizes?

Pallet spec sheets such as PDS use actual dimensions. Lumberyards selling dimension lumber often use nominal sizes, which gives a larger number for the same board.

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Last reviewed 2026-09-24. 263 words.