Free to use
Plan materials without subscriptions, trials, or hidden fees.
Measure with confidence
Lumber Calculations Made Simple
LumberMetric provides free, practical calculators for woodworkers, carpenters, lumber buyers, builders, contractors, and DIY projects.
Featured tool
Board Foot Calculator
Combine different board sizes, include waste, and estimate your material cost in one clear project total.
BF = thickness × width × length ÷ 12
Calculate board feet Built for real projects
Useful answers, without the friction
Start with the measurements you have. LumberMetric handles common imperial and metric units while keeping the calculation transparent.
No signup
Open the calculator and get a result without creating an account.
Mobile friendly
Use it at the lumberyard, workshop, or jobsite.
Practical calculations
Account for multiple board sizes, material waste, and lumber cost.
Plan your next lumber purchase
Calculate one board or a complete project with mixed sizes, waste allowance, and optional cost.
Use the free calculator