Tenon: Woodworking Calculator

Free woodworking calculators that get the math right — board feet, cut lists, fractions, miters. Now price your builds for profit & track your shop stock with Pro.

Tenon is the woodworking calculator that gets the math right — so you cut once, buy the right amount, and charge what your work is worth.

EIGHT WOODWORKING CALCULATORS — ALWAYS FREE • Cut List — pack your cuts onto the fewest boards, saw kerf included • Sheet Optimizer — a real 2D cut map for every sheet of plywood • Board Foot — lumber volume & cost, nominal or actual • Fraction — feet-and-inches tape math with real fractions • Miter — angles for any corner • Stair — risers, treads & stringer with an instant code check • Framing — stud & plate layout • Board Spacing — even gaps, every time

IMPERIAL OR METRIC — NEVER MIXED Every result reads the way wood is actually bought and cut. Switch between feet-and-inches (fractions or decimal) and millimetres anytime — Tenon never mixes units on one screen.

RUN THE BUSINESS SIDE — TENON PRO • Save builds as projects with cut-ready material lists you can export • Price for profit — material cost + labor hours + markup → the price to charge • Shop Inventory — track hardware, fasteners, finish & glue on hand, with low-stock flags • Build from stock — mark a build and its materials come off your shop inventory automatically • Unlimited projects (free saves one)

ONE-TIME LIFETIME UNLOCK Prefer not to subscribe? Unlock all of Tenon Pro forever with a single one-time purchase — no subscription, nothing renews.

Honest pricing. No tricks. Just woodworking math you can trust.

— Tenon Pro is available as an auto-renewing subscription ($2.99/month or $19.99/year) or a one-time Lifetime purchase. For subscriptions, payment is charged to your Apple Account at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the end of the period; manage or cancel anytime in your Apple Account settings. The Lifetime option is a one-time purchase that does not renew. Privacy Policy: https://evelaina.com/tenon/privacy Terms of Use: https://evelaina.com/tenon/terms