345 Construction Pro Calc
FOR FRAMERS, CARPENTERS, REMODELERS AND BUILDERS

Get every cut right the first time. In seconds.

Stairs, rafters and running totals in feet, inches and fractions, on the same keys as the construction calculator you already know. No converting, no setup, no account.

Try it on a real job for 7 days, free. Keep it for $14.99 once. Never a subscription.

Nothing is charged unless you tap Buy in the app.
No account, no card to start Works offline on site Big keys for gloves
[QR CODE]
On a computer? Scan with your phone's camera to go straight to the download.
YOU ENTERRise 8' 0" YOU GET13 risers at 7 3/8"
345 Construction Pro Calc
RISER HEIGHT 7 3/8" INCH
Pitch Rise Run Diag Hip/V Bd Ft Stair Circ Rake Jack Yds Feet Inch / Clear Conv 7 8 9 ÷ Rcl 4 5 6 × M+ 1 2 3 − % 0 . = +
$14.99 once. Yours for good. Subscription calculator apps charge about $35 a year, every year. After three years that's $105.
Try it free for 7 days
EVERYTHING INCLUDED

One purchase gets you the whole toolbox.

  • Feet-inch-fraction calculator add, subtract, multiply, divide
  • Stair solver risers, treads, stringer
  • Roof framing pitch, common, hip, valley and jack rafters
  • Rake walls, circles, board feet and weight from volume
  • 17 EZ Calcs with diagrams block, brick, pavers, asphalt, post holes
  • Tape and memory running totals you can save
  • Help on every key hold any key for worked examples
  • Four themes including Daylight for direct sun
  • Every future update no upgrade fees
OVER THREE YEARS
A subscription app at $35 a year$105
345, paid once$14.99
And it's still yours in year four, and every year after. Start my free week
The Jobsite Test Use it on a real job for 7 days: stairs, rafters, cut lists, all of it. If it doesn't earn a spot next to your tape, delete it and you've paid nothing. There's no card to cancel and nothing renews.
3,000+automated checks run on the math before every release
1/64"fraction precision, or set it to what your tape reads
17EZ Calcs for masonry, paving, concrete, framing and electrical
TRADE SCHOOLS & APPRENTICESHIPS

Free for students and instructors.

One group code covers the whole class. Students type it in the app and get a full year of access: no card, no store purchase, nothing for families to pay.

  • 1Tell us your program and how many students you have.
  • 2We send a group code for each class or cohort.
  • 3Students download the app and enter the code on the first screen.
Request a class code

By sending this you agree to the Privacy Policy and Terms. We use your details only to answer this request.

CREWS, CONTRACTORS & SUPPLIERS

Buying for a crew? Get a bulk price.

One invoice, one group code your whole crew types in. Every person gets lifetime access: no subscriptions to track.

SMALL CREW 2–5 people $12.74 per person 15% off $14.99 One group code. Lifetime access for each person.
MOST POPULAR 6–24 people $11.24 per person 25% off $14.99 One invoice and a code per crew or site.
BIG CREW 25–99 people $9.74 per person 35% off $14.99 One invoice and a code per crew or site.
COMPANY OR SUPPLIER 100+ people Custom pricing Let's talk Resell to customers or roll out company-wide.

By sending this you agree to the Privacy Policy and Terms. We use your details only to answer this request.

Your next cut list starts now. Seven days free. Then $14.99 once, or nothing at all.
Coming soon for iPhone Coming soon for Android
PARTNERS WANTED

Work with the trades? Let's partner.

We're looking for lumber yards, suppliers, tool brands, trade associations and creators who teach the trades. Partners get their own link and code, a longer free trial for their people, and a share of every purchase that comes through them.

Revenue share Co-branded link and QR card Monthly report

By sending this you agree to the Privacy Policy and Terms. We use your details only to answer this request.