Why another calculator site?
Most construction calculators give you one number. Delimetra gives you the number, how it was worked out and a drawing with the dimensions you typed, so you can check it before you order materials or cut a rafter.
- Feet, inches and fractions. Type 12' 6½" the way it is on your tape; results come back in the same form. Metric users switch units or market in the header.
- Codes by section number. Where a code sets a limit — the minimum slab thickness, a roof covering's lowest pitch, a stair riser — the calculator checks it and names the IRC section.
- Nothing to sign up for. Every calculator works in the browser, and you can download a PDF report of the result.
Read how we calculate for the sources and the rules every calculator follows. More calculators are added every month.