# StringerPro: Stair Calculator

> IRC-checked stair stringer layouts. Fraction-native. Printable cut sheets.

Canonical page: [https://chrome-stats.com/d/com.clearstackapps.stringerpro](https://chrome-stats.com/d/com.clearstackapps.stringerpro)

## Overview

- **ID:** `com.clearstackapps.stringerpro`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** ClearStack Apps
- **Category:** TOOLS
- **Downloads:** 851
- **Version:** 1.0.2
- **Last updated:** 2026-07-22
- **First published:** 2026-05-10
- **Publisher country:** GB
- **Size:** 33 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.clearstackapps.stringerpro)
- **Website:** [https://clearstackapps.com](https://clearstackapps.com/)
- **Privacy policy:** [https://clearstackapps.com/privacy](https://clearstackapps.com/privacy)

## Description

StringerPro turns total rise + total run into a code-checked, ready-to-cut stair stringer layout.<br><br>Built for finish carpenters, framers, and deck builders who want one tool that does the stringer job exceptionally well -- not nine bundled calculators that all forget the bottom step.<br><br>KEY FEATURES<br><br>- Fraction-native input. Feet + whole inches + sixteenths picker that feels as fast as a dedicated construction calculator. Common stops (0, 1/4, 1/2, 3/4) are one tap.<br>- IRC R311.7 code validation. Real-time green / yellow / red badges for riser height (max 7-3/4&quot;), tread depth (min 10&quot;), variance (max 3/8&quot;), 2x12 throat (min 3-1/2&quot;), comfort (rise + tread sum), and pitch angle.<br>- Bottom step done right. The bottom riser is automatically shortened by the tread thickness so walking rises stay uniform once treads are installed -- a common source of uneven steps.<br>- Side-view diagram with all dimensions labeled. No 3D gimmicks -- just a clean 2D elevation that prints cleanly.<br>- Framing-square cut sheet. Step-by-step heel positions along the top edge of the 2x12, with rise leg + run leg dimensions for every notch, plus end cuts for the seat and plumb cuts.<br>- 1:1 print template. Tile the side view across letter or A4 pages at full scale, tape together, and trace directly onto the 2x12. Crop marks on every corner.<br>- Material estimator. Stringer count, stair width, and lumber prices in -- linear footage and total job cost out, including fasteners.<br>- Saved jobs. Job name, address, photo, and notes. One saved job on the standard tier; unlimited with premium.<br>- Deck stair mode. Deck-board nosing standard, concrete-pad seat cut, IRC R311.7.5 deck stair rules.<br>- Imperial + metric, light + dark + jobsite high-contrast themes.<br>- 7-day full premium trial on first install.<br><br>PREMIUM (one-time unlock, no subscription)<br><br>- Unlimited saved jobs with photos<br>- All three PDF exports (summary, cut sheet, 1:1 print template)<br>- Material estimator<br>- Removes ads<br>- Custom default thicknesses<br>- Jobsite high-contrast theme<br><br>DISCLAIMER<br><br>Verify all measurements before cutting. Output is for estimation only. Local building codes may vary.

## Rankings

- #1,201,529 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.clearstackapps.stringerpro.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.clearstackapps.stringerpro)