Ask Dave    |    About us    |    Members
Home    |    Articles    |    Plans    |    Custom Plans    |    Dictionary    |    Our eBooks    |    Newsletter    |    Member Photos

Roof Pitch Angle

Question

What is the formula to convert the roof pitch to degrees?

Answer

You will need a scientific calculator to make use of the formula or just use the table below. If you have a scientific calculator, the formula is:

 angle of roof = atan(inches of rise/12)

Here are the angles for each inch of rise per foot:

	Rise Angle in Degrees

	 1 4 3/4
	 2 9 1/2
	 3 14
	 4 18 1/2
	 5 22 1/2
	 6 26 1/2
	 7 30 1/4
	 8 33 3/4
	 9 37
	 10 39 3/4
	 11 42 1/2
	 12 45

Dave

(Ask Dave) (About Dave)



Sign up for our free monthly
newsletter and get
Free Woodworking Plans

Get free access to this article and two
others of your choice, just by entering
your email address below.

Receive our free Monthly newsletter which contains a
free set of woodworking plans each and every month.

Email:


   
   

Already a Member? Login here:
Username:

Password:

 

Forgot your username or password? Click here.
Become a Member.


legal