Rafter & roof pitch calculator

Use this app to effectively and efficiently calculate your roof rafter length and pitch.

Enter your optional ridge width, rise, span and optional overhang and the rafter length and roof pitch will automatically be calculated for you with up to 3 decimal place precision.

Enter the measurements in mm, cm, meters, feet, inches - its up to you!


DISCLAIMER:
While the developers of this application make every effort to deliver high quality products, we do not guarantee that our products are free from defects or errors. Our software is provided “as is," and you use the software at your own risk. We recommend that you seek the advice of a certified professional before drawing any conclusions from any calculations generated from the software.
We make no warranties as to performance, merchantability, fitness for a particular purpose, or any other warranties whether expressed or implied.
No oral or written communication from or information provided shall create a warranty.
Under no circumstances shall the developers of this application be liable for direct, indirect, special, incidental, or consequential damages resulting from the use, misuse, or inability to use this software, even if we have been advised of the possibility of such damages.
The developers of the software cannot accept liability for any loss, damage or injury as a result of using the results generated from our software. Show More