Board Foot Calculator

A board foot is thickness (in) × width (in) × length (ft), divided by 12 — the standard lumber-industry unit. Enter your board's dimensions and quantity to get total board feet, and optionally a price per board foot for an estimated cost.

Thickness (in) Width (in) Length (ft) Quantity (# of boards) Price per board foot ($) — optional Use a real quote from your supplier — we don't guess a number we can't verify.

Formula: (thickness in. × width in. × length ft.) ÷ 12, per board, times quantity. Nominal (rough-sawn) dimensions are standard for this calculation — actual dressed lumber is typically smaller.

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