How to measure or figure rafter length and mark and cut them accurately.
How do you cut roof rafters.
The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope.
To find the location of the rear lentil for the rafters use a framing square.
The roof on this shed is a 4 in 12 slope which makes it a 18 and.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
Cut one end of each 2 x 8 rafter to get the necessary length desired.
Birdsmouth joint how to cut a birdsmouth and how to cut and install roofing rafters and joists.
If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.
The first step in building the roof rafters is to cut one rafter board to length with the ends angled properly and then to mark and cut the birds mouth and seat on the rafter.
Once you located where the mark falls on the 2 x 10 measure the distance and be sure to add 10 for the overhang.
In this diy guide you will learn how to install a roofing joist or rafter that includes how to work out the pitch of a roof cut a ridge or plumb cut at the correct angle work out the correct length of joist you need and the exact location for a birds mouth joint how to correctly cut a birds.