Wood Calculators
Free, fast, and ad-free calculators for wood people — built by a Kentucky sign shop that got tired of the clunky ones. Every tool is embeddable on your own site, free, with credit.
Board Foot Calculator
Multi-board cutlist with per-species pricing, 1/4–40/4 thickness, and project cost totals.
🪓Log Board Foot Calculator
Scale logs by Doyle, Scribner, and International ¼" rules side by side.
🔥Firewood Cord Calculator
Turn any stack into true cords and see the real price per cord before you buy.
⚖️Lumber Weight Calculator
Species density × board feet — know if the load fits your truck.
📐Plywood Sheet Calculator
Area to cover into sheets to buy, with honest waste allowances.
📏Sign Letter Size Calculator
Viewing distance in, letter height out — with the full visibility chart.
🪓Janka Wood Hardness Chart
40 species ranked by hardness, with density and working notes. Searchable.
🫶Sandpaper Grit Chart
Printable: which grit, in what order, and where to stop before finishing.
🔧Drill Bit Size Chart
Printable: fractional-decimal-mm plus wood screw pilot hole sizes.
📏Fraction to Decimal Chart
Printable: every inch fraction 1/64-1 as decimals and millimeters.
🔨Pocket Hole Guide
Printable: jig settings and screw lengths for every wood thickness.
🖌15 Free Sign SVGs
Cut-ready sign designs for CNC, laser, and Cricut - free for commercial craft use.
All calculators use published industry formulas and standards — details and sources on each tool's page. Built and maintained by Bluegrass Gifts, makers of personalized carved wood signs in Rineyville, Kentucky.