RoofCalc - Roofing Calculator
Roof & Framing Carpenters
Free · In‑App Purchases
Developed by carpenters for carpentry professionals.
Accurate, reliable and easy to use.
No complex steps to remember!
Used across the US, Australia, UK and the World.
Roofing and Framing carpentry Calculator.
Developed by carpenters and used by master carpenters, contractors, builders and other construction professionals around the world.
An indispensable roof tool for roofing construction.
Easy to use - no complex steps to remember.
Set default values for the most commonly used values.
Metric and imperial at the touch of a button.
CALCULATIONS INCLUDE :
Hipped, gabled and single-pitch roofs:
◆ Lengths ;
◆ Angles;
◆ Heights;
◆ layout;
◆ Birdsmouth
◆ Pitch (various);
◆ Roof Pitch Factor;
◆ Adjust calculations for a plate higher on one side;
◆ Roof surfaces ;
◆ Stud Wall Calculations & Estimating ;
◆ Other timber layouts ;
◆ Roof surfaces ;
ALSO:-
◆Easy-to-use standard calculator - common functions for quick calculation.
◆ Quick converter - lengths, areas, volumes: Metric and US/Imperial
◆ Print, email or message lists and even take notes on the first ;
Optimised for all iPhones and iPads in portrait mode.
INFOGUIDE :
Infoguide is part of a small construction company based in Western Australia and this app was created by a former carpenter for our team of carpenters. We use it and believe it will be as useful to other carpenters as it has been to us.
Terms of Service: http://www.apple.com/legal/itunes/appstore/dev/stdeula
more Version 5.71 : Bug Fix
5.71 12/29/2025
Version 5.70: Bug fixes, improved performance and future-ready features.
5.70 12/10/2025
Version 5.51: Bug fix
5.51 12/18/2024
Version 5.50: Minor bug fix
5.50 12/12/2024
VERSION 5.48:
Minor bug fix 1) - Entry of 'mm' freezing in some situations on return from standalone calculator - Thanks Adam for the heads up;
2) - Crash on startup in very rare circumstances
5.48 10/08/2024
VERSION 5.03:
Minor bug fix.
5.03 07/26/2023
VERSION 5.02:
Minor performance improvement.
5.02 07/24/2023
VERSION 5.01:
Minor performance improvements and bug fixes.
Requires IOS16.4+
5.01 07/19/2023
Version 5.00:
US/Metric at the touch of button.
Major overhaul of the roofing component including interactive diagrams instead of the old tabular presentation of information.
Quick access to parameters, metric/imperial data, sharing and the regular calculator.
5.00 07/15/2023
Version 2.26: Fixed Bugs Related to IOS 13
Version 2.25:
Fix bug in emailing simple calculator tab, with minor performance improvements.
Version 2.20:
Addition of new calculations on 'Other Roof' tab - options accessible by 'Long Press'.
Small performance improvements also Long Press option more obvious and with feedback via vibration when selected.
The app requires IOS 11 and is optimised for iPads & iPhones - Including iPhone X.
Requires Full Screen at the moment on the iPad.
NOTE: Because of the limitation to 5 visible tab button the remaining tabs are accessible from the 'More' tab.
The tabs can be reorganised by going to the 'More' tab and pressing 'Edit'. Swipe the preferred Tabs to the tab bar at the bottom and 'Done'.
Please provide feedback on any features you would like to see added or any areas you would like to be improved - we will respond!
We never prompt you for a review because we know your time is valuable.
If you a few moments please leave a rating or if you can spare the time, please leave a review.
It makes a big difference to us!
Go to Settings->More Information-> Review Us In The App Store
Version 2.0:
A major update with a number of new features and simpler presentation style.
ADDED: NEW CALCULATORS:
• Stud Wall Timber estimator;
• Set Out/Timber Spacing Layout;
• Convert - length, area and volume;
Based on feedback, the new calculator tabs have changed to a more classic button format. With data entry directly on the buttons - not at the top of screen as in the older tabs.
Depending on feedback we will move to change the existing tabs (Spreadsheet cell format) in a future release.
FIXED: Corrected a bug on the stand alone calculator tab, which caused it to malfunction in some regions.
IMPROVED: Moved Compound Mitre Saw Cut Angles to separate column (Does not require a long press as now always visible).
2.26 09/25/2019
Version 2.25:
Fix bug in emailing simple calculator tab, with minor performance improvements.
Version 2.20:
Addition of new calculations on 'Other Roof' tab - options accessible by 'Long Press'.
Small performance improvements also Long Press option more obvious and with feedback via vibration when selected.
The app requires IOS 11 and is optimised for iPads & iPhones - Including iPhone X.
Requires Full Screen at the moment on the iPad.
NOTE: Because of the limitation to 5 visible tab button the remaining tabs are accessible from the 'More' tab.
The tabs can be reorganised by going to the 'More' tab and pressing 'Edit'. Swipe the preferred Tabs to the tab bar at the bottom and 'Done'.
Please provide feedback on any features you would like to see added or any areas you would like to be improved - we will respond!
We never prompt you for a review because we know your time is valuable.
If you a few moments please leave a rating or if you can spare the time, please leave a review.
It makes a big difference to us!
Go to Settings->More Information-> Review Us In The App Store
Version 2.0:
A major update with a number of new features and simpler presentation style.
ADDED: NEW CALCULATORS:
• Stud Wall Timber estimator;
• Set Out/Timber Spacing Layout;
• Convert - length, area and volume;
Based on feedback, the new calculator tabs have changed to a more classic button format. With data entry directly on the buttons - not at the top of screen as in the older tabs.
Depending on feedback we will move to change the existing tabs (Spreadsheet cell format) in a future release.
FIXED: Corrected a bug on the stand alone calculator tab, which caused it to malfunction in some regions.
IMPROVED: Moved Compound Mitre Saw Cut Angles to separate column (Does not require a long press as now always visible).
2.25 02/06/2019
Version 2.20:
Addition of new calculations on 'Other Roof' tab - options accessible by 'Long Press'.
Small performance improvements also Long Press option more obvious and with feedback via vibration when selected.
The app requires IOS 11 and is optimised for iPads & iPhones - Including iPhone X.
Requires Full Screen at the moment on the iPad.
NOTE: Because of the limitation to 5 visible tab button the remaining tabs are accessible from the 'More' tab.
The tabs can be reorganised by going to the 'More' tab and pressing 'Edit'. Swipe the preferred Tabs to the tab bar at the bottom and 'Done'.
Please provide feedback on any features you would like to see added or any areas you would like to be improved - we will respond!
We never prompt you for a review because we know your time is valuable.
If you a few moments please leave a rating or if you can spare the time, please leave a review.
It makes a big difference to us!
Go to Settings->More Information-> Review Us In The App Store
Version 2.0:
A major update with a number of new features and simpler presentation style.
ADDED: NEW CALCULATORS:
• Stud Wall Timber estimator;
• Set Out/Timber Spacing Layout;
• Convert - length, area and volume;
Based on feedback, the new calculator tabs have changed to a more classic button format. With data entry directly on the buttons - not at the top of screen as in the older tabs.
Depending on feedback we will move to change the existing tabs (Spreadsheet cell format) in a future release.
FIXED: Corrected a bug on the stand alone calculator tab, which caused it to malfunction in some regions.
IMPROVED: Moved Compound Mitre Saw Cut Angles to separate column (Does not require a long press as now always visible).
2.20 01/08/2019
RoofCalc Version 2.0 is a major update with a number of new features and simpler presentation style.
ADDED: NEW CALCULATORS:
• Stud Wall Timber estimator;
• Set Out/Timber Spacing Layout;
• Convert - length, area and volume;
Based on feedback, the new calculator tabs have changed to a more classic button format. With data entry directly on the buttons - not at the top of screen as in the older tabs.
Depending on feedback we will move to change the existing tabs (Spreadsheet cell format) in a future release.
Because of the limitation to 5 visible tab button the remaining tabs are accessible from the 'More' tab.
The tabs can be reorganised by going to the 'More' tab and pressing 'Edit'. Swipe the preferred Tabs to the tab bar at the bottom and 'Done'.
FIXED: Corrected a bug on the stand alone calculator tab, which caused it to malfunction in some regions.
IMPROVED: Moved Compound Mitre Saw Cut Angles to separate column (Does not require a long press as now always visible).
The app requires IOS 11 and is optimised for iPads & iPhones - Including iPhone X.
Requires Full Screen at the moment on the iPad.
Please provide feedback on any features you would like to see added or any areas you would like to be improved - we will respond!
We never prompt you for a review because we know your time is valuable.
If you a few moments please leave a rating or if you can spare the time, please leave a review.
It makes a big difference to us!
Go to Settings->More Information-> Review Us In The App Store
2.0 06/12/2018
Minor Bug Fix
1.21 05/09/2016
Update Buttons to highlight multi-function Long Press Option Buttons
- Eg Span button can be changed to 1/2 span button by a Long Press (not 3D/Haptic Touch as a number users still on IOS7/8).
Added additional length calculations including for 1/2 Span - 1/2 Rafter Thickness (Rafters/Hips - with or without eaves)
-This caters for End Jack/King/Crown rafters lengths when the hipped roof ridge length is calculated by adding the common rafter thickness. The alternative method is to add the ridge thickness and in which case the End Jack/King/Crown rafter is the same length as the common rafter. Both approaches are used in different regions.
Updated the Jack Rafter calculations to allow for both geometric length and the length to the top long point adjusted for the Hip.
Added compound Mitre Saw angles to the Angles/Template screen (long Press Template)
We welcome feedback - Settings> More Information > Email - if you have any feedback or suggestions for corrections or future improvements.
1.20 12/16/2015
Bug fixes & small updates.
Updated Calculator Tab (general construction calculations) to also allow inverse trig functions for cos,sin & tan - just tap Fn button to alternate between versions.
Add, subtract, multiply in feet inches and fractions of an inch or decimal feet or inches.
We welcome feedback - Settings> More Information > Email - if you have any feedback or suggestions for corrections or future improvements.
1.11 11/16/2015
Bug fixes & small updates.
Updates Include:-
Updated Calculator Tab (general construction calculations) to also allow entry of feet inches & fractions for direct use in calculations.
Entry and display of feet/inches is displayed on the On-Screen Tape - while the decimal result is visible on the main display at the same time.
Allowed selection of rounding options for decimal and fractions (of inches) - double tap for HELP on feet/inches/fractions or decimal pt - LONG PRESS to change values.
Added memory buttons.
We welcome feedback - Settings> More Information > Email - if you have any feedback or suggestions for corrections or future improvements.
1.10 10/28/2015
Bug fixes:
Corrected error in autocomplete for some situations in US measurements.
Corrects email link under the Tab - Settings>More Info.
Following iPad Only : Fixed occasional crash in iPad version when undo (which is visible on the iPad keyboard) was used instead of backspace. Undo now follows the actions of the backspace key.
Now also allows standard iPad keyboard 'Done' and '/' to be used as well as the accessory keyboard versions on US Measurements.
We welcome feedback - Settings> More Information > Email.
Easily contact us for assistance or if you have any feedback or suggestions for corrections or future improvements.
1.01 08/10/2015
Version 5.71 : Bug Fix
more Version 5.71 12/29/2025
Data Not Collected The developer does not collect any data from this app.