Rafters and ridge boards.
Framing gable roof rafters.
From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
Framing a gable roof building a gable with barge end purlin struts and collar ties.
This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement.
The roof rafters provide integral structural support to the roof.
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.
Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.
Roof framing rafter layout.
After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.