Workshop for Builder Fraction Calculator

The Builder Fraction Calculator is free app designed for contractors, engineers, and architects.

Learn how to do construction math with these workshops below.



Precision hip roof decking calculator.



Common rafter calculator based on roof width, pitch, and ridge thickness.



Calculate the rise of a rafter based on the run and the roof pitch.



Calculate the run of a rafter based on the rise and the roof pitch.



Convert roof pitches or any other slopes into degrees with this easier than ever technique.



Solve for the unknown roof pitch for any slope.



Calculate square feet for rectangles.