These are called hip jack rafters.
How to cut rafters for hip roof.
This is covered in cutting common rafters mar 17.
Depending on the size of the roof most hip roofs will have 4 6 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters.
Before we explain hip rafters you need to understand how to lay out and cut common roof rafters.
Print full scale paper templates cut and fold over wood to mark and cut angles set bevel gauge.
See saw miter and blade angle settings.
Hip roof framing rafter cut angle template diagram.
If using a circular saw or compound miter saw set saw bevel angle to 45 to obtain creeper and hip side angles.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
Hip roof framing rafter cut angle template diagram.
Hip rafter plumb cut.
When you cut the rafters you ll need to make 3 separate cuts.
There are many variations on hip roofs and their construction but for the purpose.
The key structural member is the hip rafter which spans from the building corner to the peak or the ridge.
If you are using a stanley quick square move the blade to the corresponding notch for the hip rafter.
The roof rafters provide integral structural support to the roof.
The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut.
You ll use a king rafter anytime you construct a hip style shed roof.
Since the hips connect diagonally to the ridge board the rafters close the edges of walls on either side of the hip rafters will be shorter.
If using a circular saw or compound miter saw set saw bevel angle to 45 to obtain creeper and hip side angles.
Also it has to be cut to form a point so to cut a hip raffter plumb cut you need to set the circular saw over so it will cut 45.
Measure the distance between the angled hip rafter and the top of the wall at 20 in 51 cm increments and cut jack rafters to fit.
Hip jack rafters are the shorter rafters that connect to the hip rafters.
