# Rafter Tools+

> Advanced rafter calculator for complex roof framing angles and timber framing. (iPhone/iPad app by Sim Ayers.)

- Source: https://appshunter.io/ios/app/rafter-tools-plus/id689788839 (this page in markdown: same URL + `.md`)
- Developer: [Sim Ayers](https://appshunter.io/developer/689788842)
- Category: Business, Productivity
- Price: $7.99
- Rating: 2.70/5 from 7 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 177 MB
- Languages: American English
- Released: 2013-08-23
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/rafter-tools-plus/id689788839/reviews.md

## What is Rafter Tools+?

Rafter Tools+ for iPhone-iPad is a rafter calculator for complex roof framing angles that other roof framing calculators don't offer. Calculating common rafters with a construction calculator is fairly easy, but to be a master carpenter you need more roof framing angle information then the construction calculators offers. With the Rafter Tools-Plus app, you'll be able to calculate all of the complex angles for roof framing.

The calculator displays the hip rafter plumb line shift dimensions to precisely layout hip rafters for equal pitched or irregular hip roofs with any eave angle (0° - 180°). Calculate and layout the witches cut precisely with Rafter Tools-Plus (Square Tail Fascia) using the hip rafter plumb line shift dimensions.

Display the hip rafter roof framing angles with easy to use Framing Square Usage. Calculates the lengths of common rafters, jack rafters, and hip rafters. With ridge and hip rafter width deductions. Use it to calculate Pentagonal, Hexagonal or Octagonal Roofs.

Timber Framing Angles calculated from Bartok, Hawkindale, Martindale and McKibben-Gray Hip-Valley Roof Ratios Angle Formulas. Timber Framing Angles definition are just a click away in the app.

Standard Rake Walls and Hip Rake Walls rotated into the roof surface plane.
Devers-Canted Hip Rafters, Purlin Rafters

Round Tower Framing, Octagonal Framing, Bay Window Framing

## Key features

- Complex roof framing angle calculations
- Hip rafter plumb line shift dimensions
- Witches cut layout
- Calculates common, jack, and hip rafter lengths
- Supports pentagonal, hexagonal, and octagonal roofs
- Timber framing angle formulas

## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/rafter-tools-plus/id689788839/reviews.md

### 1/5 — Does not work

*2025-09-20, version 2.1*

Opened the app to be greeted with  the user interface not working what more is there to say .poor app

### 5/5 — App for true carpenters only

*2025-02-18*

Anyone who is not giving this app a five star rating is clueless. The app provides all the necessary angles and information to calculate any hip/valley rafter, length, location, intersection point to construct any roof system. For anyone with a firm grasp on geometry yet lacking an education in trigonometry this app is a must.

### 1/5 — Shocking app

*2022-05-25, version 1.1.10*

This is the worst app ever. Not user friendly at all. Display is horrendous on the iPhone. Can not choose between metric and imperial. Just don’t do it. Save your money

### 5/5 — Rafter tools plus

*2020-11-24, version 1.1.9*

Just brilliant!  I agree it’s probably not for everyone - but I found it incredibly intuitive. Helps if you understand trigonometry in the first place.

### 2/5 — Neil

*2020-02-16, version 1.1.8*

Not easy to use, nothing explained

### 5/5 — Not for everyone.

*2018-12-10*

It’s really hard to understand that anyone would look to this app for basic roof design calculations. I’ve been using “Construction Master” for almost 20yrs and still do every day, but this app goes way beyond that. Obviously the developers assumed that their consumers would already have a good understanding of complex roof design. This app met all of my expectations. It may not be the most polished interface but the shear capabilities of the app are outstanding. If your more of a framing square than a speed square type of carpenter then you’ll understand.

### 1/5 — Bad app

*2018-05-22*

Carpenter for 15 years and now I’m in IT, horrible app and I want my money back.

### 1/5 — Not good for framing in my opinion

*2016-12-28*

I was looking for an app that would give run length for roof framing based on rise and run.  This failed to meet my expectations

### 5/5 — Great Teaching Tool!!!

*2014-05-17*

Hip roof systems are by no means easy and with all the helpful articles and drawings that are included in this app you will be cutting hips in no time! Screen shot of this program does no justice to how many angles and information is given. This app is extremely optimized for timber framing as you are able to change the dimensions of your hip and jack rafters, plus explains all the timber framing angles. If you ever plan on cutting a hip take the guess work out of it and by this app!!

### 5/5 — Great app

*2013-09-14*

Awesome. It’s about time there was an app for complex roof framing.

## Frequently asked questions about Rafter Tools+

### What is Rafter Tools+ used for?

Rafter Tools+ is a specialized calculator designed for complex roof framing angles that go beyond what standard construction calculators offer. It helps users precisely lay out hip rafters, calculate witches cuts, and determine lengths for various rafter types and roof shapes.

### What roof types can Rafter Tools+ calculate?

Rafter Tools+ can calculate angles for equal pitched or irregular hip roofs with any eave angle. It also supports the framing of Pentagonal, Hexagonal, and Octagonal Roofs, as well as Round Tower Framing, Octagonal Framing, and Bay Window Framing.

### Does Rafter Tools+ support timber framing?

Yes, Rafter Tools+ calculates Timber Framing Angles using formulas from Bartok, Hawkindale, Martindale, and McKibben-Gray Hip-Valley Roof Ratios. Definitions for these timber framing angles are also available within the app.

### What devices is Rafter Tools+ available on?

Rafter Tools+ is available for iPhone and iPad devices, indicated by its support for 'iphone' and 'ipad'.

### How much does Rafter Tools+ cost?

Rafter Tools+ is a paid application, priced at $7.99. There are no in-app purchases mentioned for this app.

### When was Rafter Tools+ last updated?

The latest version of Rafter Tools+ was released on May 3, 2024, indicating recent development and maintenance.

### What is the age rating for Rafter Tools+?

Rafter Tools+ has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in construction or mathematics.

### What do users think of Rafter Tools+?

User feedback for Rafter Tools+ indicates a mixed reception, with an average rating of 2.7 stars from 7 ratings. This suggests that while some users find value in its specialized features, others may have encountered issues or had different expectations.

## Version history (last 5 releases)

### 2.1 — 2024-05-03

updated to iOS 17.0

### 1.1.11 — 2023-03-05

Updated to iOS 16 and fixed a drop down menu

### 1.1.10 — 2022-03-29

updated to iOS 15.0

### 1.1.9 — 2020-06-08

updated to iOS 13.4

### 1.1.8 — 2019-03-01

Updated Certificate

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## More apps by Sim Ayers

- [Crown Molding Tools](https://appshunter.io/ios/app/crown-molding-tools/id894395519)
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- [help-desk](https://appshunter.io/ios/app/help-desk/id6759624979)
- [Stair Tangent Dark](https://appshunter.io/ios/app/stair-tangent-dark/id6761790615)
- [RafterTools+ Dark](https://appshunter.io/ios/app/raftertools-plus-dark/id6762562883)

All apps by Sim Ayers: https://appshunter.io/developer/689788842

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*