---
title: "CutOnce - Builder&#039;s Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The construction calculator that generates stair and rafter PDF plans offline, on your phone. No signal, no account, no subscription. Feet and inches fraction math, code-checked stairs, rake wall stud"
---

# CutOnce - Builder&#039;s Calculator — United States
> Stairs, Rafters &amp; Fractions

![CutOnce App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c5/18/e8/c518e89c-c9ff-0b42-e626-40eaa5ad218c/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-Tsjcjc)
**Category:** Utilities
**Rating:** 5.0/5 (6 ratings)
**Price:** Free
**Bundle ID:** com.veriklabsllc.cutonce
**Store:** Apple App Store
**Country:** United States
**Version:** 1.17.0 (released 2026-10-22)
**Original Release:** 2026-04-08
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6761668958)
**AppTail Page:** [https://apptail.io/app/cutonce-builders-calculator-sUMz/united-states](https://apptail.io/app/cutonce-builders-calculator-sUMz/united-states)

## CutOnce Description
The construction calculator that generates stair and rafter PDF plans offline, on your phone. No signal, no account, no subscription. Feet and inches fraction math, code-checked stairs, rake wall stud schedules, roofing, masonry, crown angles, footings, deck, drywall, paint, and board feet, with optional material cost on every estimate.

STAIR CALCULATOR
• Enter total rise and get a complete stair layout
• Code check against IRC R311.7 (riser, tread, throat, total rise, headroom), on screen and on the plan, with every limit editable in Settings
• Live, zoomable diagrams: elevation, stringer, detail, and balusters
• Flush (deck) mount stringers, plus a landing split when one flight is too tall
• Export a detailed PDF with cut dimensions for the shop

RAFTER CALCULATOR
• Common rafters from span or run
• Ridge height, birdsmouth, tail cuts, HAP, overhang, and slope
• PDF export with all the cut angles you need

HIP &amp; VALLEY RAFTERS
• Hip and valley lengths, backing angles, and cheek cuts
• King common and jack rafter spacing, with full PDF export

RAKE WALL / GABLE FRAMING
• Every stud length from pitch, run, base height, and on-center spacing
• Top plate bevel and pitch-off-square angles called out
• Dimensioned elevation PDF with the full stud schedule for the saw

ARC &amp; CURVES
• Radius, diameter, arc length, and included angle from a chord and rise
• Or work back from diameter and angle, with a live curve to zoom

FEET-INCH-FRACTION MATH
• Enter measurements naturally: 3&#039; 5-3/16&quot; + 2&#039; 10-1/2&quot;
• Add, subtract, multiply, and divide all in fractions
• Choose your precision: 1/2&quot; through 1/64&quot;
• Five memory registers, M1 through M5, for several running totals at once

RIGHT ANGLE &amp; TRIG
• Solve any right triangle from two known sides in feet-inches-fractions
• Sin, cos, and tan with inverses, in degrees or degrees-minutes-seconds
• Perfect for squaring walls, checking layouts, and cutting braces

ROOFING MATERIALS
• Shingle bundles and squares from roof area or measured surface
• Sheathing sheets, underlayment rolls, ridge cap, and lapped drip edge
• Live roof diagram and a shop-ready PDF takeoff

CONCRETE BLOCKS &amp; BRICK (MASONRY)
• Block and brick counts with a fractional course layout
• Mortar yield by product and a CMU width selector (4&quot;–12&quot;)
• Optional grout, rebar, bond-beam steel, and wall weight

CROWN MOULDING / COMPOUND MITER
• Saw miter and bevel angles for crown on a compound-miter saw
• Nested (in-position) cutting mode, angle diagram, and a PDF for the saw

MATERIAL TAKEOFFS
• Deck: boards, screws, railing posts, and balusters at code gap
• Drywall: wall and ceiling sheets, 4x8 to 4x14, openings and waste
• Paint: paintable area and gallons by coat, at your can&#039;s spread rate
• Board feet: run a whole cut list and total it on the tape
• Concrete: bags or yards with adjustable waste, plus pad and strip footings
• Area, volume, and unit conversion in imperial or metric

COST ESTIMATING
• Total Cost solves any direction: the total, what a budget buys, or the price to hit
• Optional price rows on nearly every material calculator
• Material cost prints right on the tape and the PDF

BUILT FOR THE JOBSITE
• Free 7-day trial of every advanced calculator. Basic calculator always free.
• One-time purchase to unlock. No subscriptions, no ads, free updates.
• Works on iPhone and iPad, in English and Spanish

Framing walls, cutting stringers, laying out rafters, ordering roofing and block: CutOnce gives you accurate answers in the units you actually use.

## CutOnce Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c8/46/15/c8461512-4c50-b709-bcc4-b59740e8aa23/iphone-calculator.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8f/64/0b/8f640bbe-6b1a-1edb-9feb-9771b2752260/iphone-stairs.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6a/f2/d6/6af2d695-59a3-38f8-4f6f-7cc38a73a592/iphone-pdf-stair.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/38/28/9b/38289bc8-864e-a4a8-0d9e-56d780adca13/iphone-stair-diagram.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ff/83/58/ff83581c-90cf-4489-df29-a57a41559e59/iphone-rafters.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/39/82/3d/39823de2-c887-dcd1-0ab4-4fb9fc64d5aa/iphone-total-cost.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/24/83/3a/24833a19-02fb-db12-413d-ec1ac7229abd/iphone-toolbox.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a2/5c/db/a25cdb50-5205-c0e0-e85c-c883e861ed56/iphone-unit-conversion.png/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2a/ee/89/2aee8986-c7e7-79b5-7c6d-8c77e37a8a97/iphone-masonry.png/1284x2778.png)

## CutOnce Rating Breakdown in United States
- 5 stars: 6 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## CutOnce Reviews in United States

### ***** "Made me feel like a pro"
I built a deck in my backyard and CutOnce figured out how much lumber I needed, calculated my stair rise and run, and even told me how many concrete bags for the footings. I didn’t search for formulas or hope I got the math right. Everything just worked in the units I was buying at the store.
-- Munnybunny87, 2026-04-08

[View all CutOnce reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&amp;utm_content=reviews)

## CutOnce In-App Purchases
| Item | Price |
|------|-------|
| CutOnce Full Access | $19.99 |




## CutOnce Available In
- [United States](https://apptail.io/app/cutonce-builders-calculator-sUMz/united-states)
- [Canada](https://apptail.io/app/cutonce-builders-calculator-sUMz/canada)
- [United Kingdom](https://apptail.io/app/cutonce-builders-calculator-sUMz/united-kingdom)

---

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