木材ボードフィート計算機

共有リンク

はじめに

Lumber Board Feet Calculator — Total board feet for a lumber order. Enter Thickness (in), Width (in), Length (ft), Quantity to get an instant, accurate result.

計算式

Board feet per piece = (thickness in inches × width in inches × length in feet) ÷ 12, the standard board-foot formula, multiplied by quantity for the total.

ステップごとの説明

Enter the Thickness (in).
Enter the Width (in).
Enter the Length (ft).
Enter the Quantity.
Click Calculate to see your result instantly.

実例

Example: With Thickness (in) = 1.5, Width (in) = 5.5, Length (ft) = 8, Quantity = 10, the Lumber Board Feet Calculator gives Board Feet Each: 5.5, Total Board Feet: 55.

よくある質問

What is a board foot?

It is a volume measurement equal to a piece of wood 1 in thick, 12 in wide, and 12 in long (144 cubic inches) — the standard unit for pricing rough lumber.

Does this use nominal or actual lumber dimensions?

Use whichever dimensions you enter — for dressed (surfaced) lumber, actual size is slightly smaller than nominal (e.g., a 2×4 is actually 1.5×3.5 in).

What inputs does the Lumber Board Feet Calculator need?

You'll need to provide: Thickness (in), Width (in), Length (ft), Quantity. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the Lumber Board Feet Calculator?

The Lumber Board Feet Calculator applies the formula exactly as calculated — Board feet per piece = (thickness in inches × width in inches × length in feet) ÷ 12, the standard board-foot formula, multiplied by quantity for the total. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Lumber Board Feet Calculator free to use?

Yes, the Lumber Board Feet Calculator is completely free, requires no signup, and runs instantly in your browser.