basic

Board-Foot Lumber Calculator

Board feet for a piece (or batch) of lumber.

Compute the number of board feet for one or more pieces of lumber from the nominal thickness, width, and length: BF = T_in · W_in · L_ft / 12 · pieces.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

in
in
ft

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

BF = T_in · W_in · L_ft / 12 · pieces

In depth

Compute the number of board feet for one or more pieces of lumber from the nominal thickness, width, and length: BF = T_in · W_in · L_ft / 12 · pieces.