JOBSITE TRADE CALCULATORS

Skip the charts. Get the answer.

A toolbox of calculators, planners, and clear diagrams—so you can spend less time digging through charts and more time building.

Buildable fractional dimensions
Saved planners + layout undo
iPhone + web, one account

Download for iPhoneGet Craftmetry from the App Store Use on Android or the webOpen in your phone or desktop browser

Try the iPhone calculators without an account. Sign in for synced saves and the web tools.

ACTUAL APP / STRINGER MARKING GUIDE

Craftmetry Stair Calculator Stringer Marking Guide showing a 7-and-a-half-inch rise and an 11-inch run

Actual stringer-marking guide · 7½″ rise · 11″ run

Example only—verify local requirements before you build.

THE TOOLBOX

Useful detail without the spreadsheet.

Fast enough for the jobsite, clear enough to show your work. Each result keeps the assumptions and source context close at hand.

01 / MEP

Gas line sizing

Size one branch or design your entire system.

See the tool

Craftmetry gas system planner showing a one-inch trunk carrying 270,000 BTU per hour, with utility room, dryer, and kitchen branches

02 / PLUMBING

Waterline sizing

Help prevent low water pressure with a layout sized right from the start.

See the tool

Craftmetry cold-water planner showing a one-inch main with 17.3 WSFU and 15.3 GPM calculated demand

03 / ELECTRICAL

Voltage drop + wire size

Distance matters. Find the wire size your circuit needs for the load and length of the run.

See the tool

Craftmetry voltage drop result showing 3.95 percent drop on a 75-foot 120-volt copper circuit

04 / FRAMING

Stair calculator

Take the guesswork (and math) out of cutting stringers.

See the tool

Craftmetry Stair Calculator showing the Stringer Marking Guide, cumulative tread measurements, and Print marking guide button

05 / FRAMING

Deck joist sizing

Your deck layout. The right joists and beams.

See the tool

Craftmetry Deck Joist Sizing showing a 10-foot by 12-foot deck plan and a 2-by-8 joist result at 16 inches on center

06 / FRAMING

Square-Up Calculator

Find the diagonal before the layout gets away from you.

See the tool

Craftmetry Square-Up Calculator showing a 144-inch by 52-inch layout with a calculated 153-and-one-eighth-inch diagonal

ONE ACCOUNT, IPHONE & WEB

Your toolbox, wherever the work takes you.

Use the web app on a desktop or Android phone, or download Craftmetry for iPhone. Sign in with the same account to keep supported saved stair calculations and gas and water layouts together.

01
Start anywhere
Check a run, lay out stairs, or build a planner in the browser or on iPhone.
02
Save your work
Save a stair calculation or gas and water planner layout to your account, then open it on your other device.
03
One account, shared Pro access
Link your subscription to your Craftmetry account on iPhone, then use the same account on the web. A web subscription works on iPhone with the same sign-in, too.

SIMPLE ACCESS

Pro when you need more than a quick answer.

On the web, your first signed-in tool use starts a one-time 15-minute preview. On iPhone, Craftmetry includes a 15-minute first-launch preview. Pro keeps the tools available after your preview ends.

BEST VALUE

Annual

$39.99 / year

Eligible new subscribers get seven days free, then $39.99 per year.

Start on iPhone

FLEXIBLE

Monthly

$9.99 / month

Keep Pro access month to month when a project needs the whole toolbox.

Open web app

Prices shown are in U.S. dollars. Subscriptions renew automatically unless canceled. Local pricing, taxes, and trial eligibility are shown before purchase. Manage or cancel through the platform where you subscribed. Link your subscription to the same Craftmetry account to share active Pro access between iPhone and the web.

SEE IT AT WORK

A closer look at the stair calculator.

Watch a quick walkthrough of the layout details that turn a total rise into a cuttable stringer plan.

READY WHEN THE WORK IS

Put a practical answer in your pocket.

Download for iPhone Or use Craftmetry in your browser →