CarpenterApp – Carpentry App

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Everyone
0+
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About this app

CarpenterApp – Your digital partner on the construction site.

Looking for a complete carpentry app for the job site or workshop? Tired of crumpled paper notes, broken pencils, and time-consuming manual math? CarpenterApp is the ultimate digital tool designed specifically for carpenters, joiners, apprentices, and serious DIY woodworkers.

Our goal is simple: Give you lightning-fast, 100% accurate geometric and trigonometry calculations so you can build right the first time, minimize material waste, and save valuable time.

CarpenterApp works 100% offline – perform calculations anywhere, whether you're in a dark basement or on a roof without cellular signal.

Key features included in this carpenter app:

• Trigonometry & Pythagoras (3-4-5 rule) [FREE]

Skip manual trigonometry lookup tables. Use classic geometry and trigonometry to instantly calculate angles, hypotenuse, and sides. Check diagonals quickly to ensure your frame, wall, or foundation is perfectly square (90 degrees).

• Compound Miter & Rafter Angles [FREE]

Find precise cut angles in degrees for roofs, rafters, and complex joints. Calculate plumb cuts and seat cuts effortlessly. Get a perfect fit on your first cut without guesswork or trial cuts.

• Stair Calculator [PRO]

Enter your total floor-to-floor height and instantly get the number of risers, tread depth, and total run. Built-in checks help keep your stair designs safe, comfortable, and compliant with standard building codes.

• Facade Cladding & Siding Layout [PRO]

Whether installing board-and-batten, lap siding, or decorative panels, let the app handle the math. Enter facade width and board dimensions to get exact placement and uniform spacing for every board.

• Material Length Optimization (Cut List Optimizer) [PRO]

Input the required piece lengths and your available stock timber. Our smart algorithm generates the optimal cutting plan to minimize wood waste and save money at the lumber yard.

• Projects, Cloud Chat & PDF Reports [PRO]

Save calculations directly to your active projects, keep notes, and stay connected with your crew. Share measurements in the cloud-synced chat, or generate clean PDF reports with technical specs ready for your client or supplier.

Why choose CarpenterApp?

🛠️ Built for the trade: Developed by a vocational carpentry instructor. No overly theoretical jargon – just the practical tools you actually need on site.

🚫 No annoying ads: We won't disrupt your workflow with pop-up advertisements while you're measuring.

Download CarpenterApp today – the essential carpentry app for all your site calculations!
Updated on
Jul 25, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and Messages
Data is encrypted in transit
You can request that data be deleted

What’s new

v3.51.0 - Interactive tool voting with feature wishlist, AI tool analysis in Admin Hub, sectioned homepage tool grid, new tool suggestion modal, and Feet & Inches unit enhancements.
Content rating
Everyone
Users Interact
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App support

About the developer
Mh Tegnestue
kontakt@toemrerappen.dk
Gl Banegårdsvej 8 C/O Michael Køster Hansen 5500 Middelfart Denmark
+45 53 30 58 51