Archived App (Last seen on 12 May 2026)
This is an archived listing of the app previously available on the App Store.
This calculator app helps rough frame carpenters quickly and accurately calculate dimensions for various types of stairs. It eliminates cumulative math errors and checks calculations against building codes, ensuring precise construction.
1.5
May 3, 2024
updated to iOS 17.0
Stair Tangent can calculate six different types of stairs, including those with locked or unlocked tread widths, 45-degree stair stringers, flared stair stringers, and circular stairs. It also handles stair landing height calculations.
Yes, Stair Tangent checks for building code compliance. It enforces a minimum stair riser height of 4 1/2" and a maximum of 7 3/4", as well as minimum stair tread widths of 10" for standard stairs and 8" inside tread width for circular stairs.
Stair Tangent is designed to eliminate cumulative math errors that can occur during stair construction. By entering a few key dimensions, the app provides all necessary information for building your stairs accurately.
Yes, the app is designed for efficiency. It states that you can lay out circular stairs in 10 minutes or less, making complex calculations more manageable.
Stair Tangent is available for iPhone and iPad devices.
The latest version of Stair Tangent is 1.5, which was last updated on May 3, 2024. This indicates active development and maintenance.
Stair Tangent is a paid application, priced at $7.99. There are no in-app purchases or advertisements mentioned.
Based on the available data, Stair Tangent has a rating of 1.0 stars from 2 ratings. This suggests a very low user satisfaction rate, which potential users should consider.
