Roofing Calculator
Simply enter the pitch and run to instantly get information including:
- The rise of the common rafter per metre (or foot) of run.
- The length of the common rafter.
- The length of the hip.
- Bevel angles including the seat and ridge for the rafter and hip/valley.
- The jack rafter decrease based on industry standard centres.
You can also input both IMPERIAL and METRIC units, and calculate using fractions of a pitch degree.
Roofing Calculator includes a big button number pad for ease of use.
This great tool is available for FREE!
Category : Tools
Reviews (30)
Good app however I can't see the rest of the calculations at Ridge area. It doesn't slide to left to make it visible.
Only just started using app but it looks good .. only app I've found that will give you the rise per metre ... so I would recommend
Very easy to use app, excellent
Great for quick on the job use
Very useful and easy to use.
I can not understand the app is not working
fantastic app ,ive thrown my reckoner away.
After you get rafter length do I need take away ridge thickness , is the measurement plumb cut at ridge to plumb cut at seat cut Any help much appreciated
No good for me it doesn't have many settings
Very easy to use.
Calculations are incorrect not happy
I want to calculate the pitch knowing the rise & run???
Tryin to understand
It's stupid
Great. Thanks 😊
It works
This house N renovated Fast. We need money × my Daughter girl name Anastasia
This app is a very nice tool to have in your system just in case of an emergency situation. It is easy to use and has been accurate and reliable when I have needed to use it.
The best tools in my opinion are those which do one job, and do it well. This is a brilliant example. Pop the known numbers in the boxes, and you get the unknowns spewed out to you. Couldn't ask for more!
Throw away the scrappy bits of paper all you need here
This is a huge help if you take the time to put in the measurements it'll do the work for you
Having this handy app on your phone takes the hassle of remembering where your tables are, a few quick taps and your there, Rafter Lengths worked out for you!!
What a great app this is. Best tool i have when i.m at work. Dont know how i managed before this .
This app does just about everything, short of putting in the nails for you. Very good.
Great app!! Very useful for a quick reference in this time sensitive world we live and work in!!
Jack rafter edge bevels would have been nice
A chippies bible in one. Easy to use and everyone has a phone.
So easy to use saves time had been very useful
Does what is says on the packaging, easy to use, great app.
The Jack rafters answers on 18 inch on center is inaccurate. Its showing the same answer as 24 inch on center. The user should be able to input the roof pitch by ?/12 or by degrees, this app only allows input of roof pitch by degrees so if the user only knows the pitch by rise per foot of run then this creates a problem and the user then has to figure that out on his own.