RedX Roof - Rafter Calculator 4+

Rafters, Valleys, Trusses

RedX Technology Inc

Designed for iPad

    • 4.6 • 605 Ratings
    • Free
    • Offers In-App Purchases



Introducing the RedX Roof Pro App, your ultimate time-saving solution with a Free Rafter Calculator, Construction Calculator, and tools for Gambrel Roof Trusses, Bay Roofs, Truss Hip Rafters, Hip Rafters, Valley Builders, Truss Builders, Plywood Angle Calculations, Turret Roof Construction, and Dormer Building. Save hours of work with this fast and user-friendly app, designed to provide precise measurements for various projects.

Key Features:

- Supports CM, MM, Feet & Inches measurements
- Generate 2D and 3D rafter plans with accurate measurements
- Easy to understand Hip Rafter Builder with interactive 3D plans
- Plywood Angles tool for perfect plywood cuts
- Valley Builder feature for quick and accurate valley construction
- Gable Truss Builder for easy truss design and measurements
- Additional tools for Turret Roofs, Dormers, Gambrel Trusses, Truss Hip Rafters, and Bay Roofs and more.

Easily create to-scale 2D and 3D rafter plans by simply inputting the roof angle, run length, and overhang length. The app generates essential measurements, including total rafter length, rise from the top of the wall and facia, rafter tail length, and birds-mouth measurements.

Just enter the Roof Pitch and Run to generate a 3D Hip Rafter plan with detailed measurements, such as hip rafter length, hip backing angles, jack rafter lengths, bevel angles, and more.

Effortlessly determine the correct plywood angle by inputting two roof pitches. The app generates a to-scale plywood plan with precise top, bottom, and side measurements, saving you time and ensuring perfect cuts.

This powerful feature generates a 3D Valley Plan with ridge length, sleeper board length, rafter lengths, angles, and bevels, by simply inputting the first and second roof pitch, rafter spacing, and first truss height.

Input the total truss length, roof pitch, and stud spacing to generate a to-scale truss plan with accurate measurements.

Discover the convenience and accuracy of the RedX Roof App – the ultimate roof tool for professionals and DIY enthusiasts alike. Download now and revolutionize your projects!

We are always adding new features every few of weeks, view the new features inside the app.

Terms Of Use
In app purchase are available for some premium features

If you choose to purchase Roof App Premium Monthly Subscription or Yearly subscription, payment will be charged to your iTunes account, and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the App Store after purchase. Current Roof App Pro subscription price starts at $3.99 USD/month. 12-month packages are available at $23.99 USD/Year, Prices are in USD dollars, prices may vary in countries other than the USD and are subject to change without notice. No cancellation of the current subscription is allowed during the active subscription period.

What’s New

Version 6.1.6

We are continuously working on improving this app, this version adds 3D Dormers.

Ratings and Reviews

4.6 out of 5
605 Ratings

605 Ratings

Pierre.Blanchard ,

A must have

This series of product is absolutely great and make it easy to calculate everything you need and provides you the list of materials needed.
Lea’s guess work and more efficiency.

Lakeshore Construction LLC ,


Outstanding app especially when cutting a simple layover recently had 3 layovers on a house precut all parts fit perfectly!! I can’t tell you how many times in the past I’d waiting for measurements ,getting aggravated thinking I wish there was a easier way.I’ve been using construction master for 30 years couldn’t figure it out to calculate rafter step down lengths,ridge board length no problem now it’s a real time saver!!!

guero199091 ,

Amazing app

I recently used the app to build a gazebo roof. It’s just amazing, everything came out perfect. Thankyou


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App Privacy

The developer, RedX Technology Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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