# Stair Help

> Staircase Calculator

Canonical page: [https://chrome-stats.com/d/id1029967951](https://chrome-stats.com/d/id1029967951)

## Overview

- **ID:** `id1029967951`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Armchair Engineering
- **Category:** Utilities
- **Rating:** 4.60 / 5 (240 ratings)
- **Version:** 1.5.1
- **Last updated:** 2019-11-08
- **First published:** 2015-08-14
- **Size:** 5.19 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/stair-help/id1029967951)
- **Website:** [http://armchairengineering.com](http://armchairengineering.com/)
- **Privacy policy:** [https://armchairengineering.com/privacy](https://armchairengineering.com/privacy)

## Description

Stair Help is a Chrome extension that quickly calculates stair riser, going, stringer, and base lengths for building projects.

Key features include:
- Accurately solve staircase equations
- Set units from mm, cm, or inches
- Adjustable max riser height
- Control decimal places
- Fractional inch precision (between 1/2 and 1/256)

## Rankings

- #97,822 — Overall

## Similar extensions and apps

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- [Stair Calculator Pro](https://chrome-stats.com/d/id6757703166) — 4.00 / 5
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- [Visual Stair Calc](https://chrome-stats.com/d/id1174978871) — 1.00 / 5
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- [Delux Stairs Construction calc](https://chrome-stats.com/d/id419836095) — 3.40 / 5
- [Stair Calculator: Stringer](https://chrome-stats.com/d/id6761447787)
- [Stair Calculator 2](https://chrome-stats.com/d/id1619604719)
- [StairCalc: Stair Calculator](https://chrome-stats.com/d/id1014235149) — 5.00 / 5
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Source: [Chrome-Stats](https://chrome-stats.com/d/id1029967951)