A common rafter has three basic parts you need to become familiar with.
How to cut a shed roof rafter.
Here s a simple formula to help figure out the angle cut at the top of a shed roof when it lies on the main roof first you must know the pitch of the main roof and the porch or shed roof.
Mark and cut the first rafter ends.
The roof rafters provide integral structural support to the roof.
Tail cut which may be cut plumb or square depending on how the eaves are detailed.
When you cut the rafters you ll need to make 3 separate cuts.
Plumb cut typically called the ridge cut at the top end of the rafter.
How to build shed roof rafters step 1.
Birdsmouth which consists of two cuts a horizontal seat cut and a vertical shoulder cut.
Make a set of.
This is the easy way to figure the angle to cut a porch roof rafter.
The ridge end of the rafter and often the eve end will need to be cut to.
Mark and cut the seat and birdsmouth.