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How to cut roof rafters youtube.
And the secret to cutting correct rafter angles is the speed square also known as the rafter square which was invented in 1925 by carpenter albert j.
The roof rafters provide integral structural support to the roof.
The rafter square makes it easier to cut the correct angles for anyone looking to make custom roof trusses.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut.
Rafter layout to lay out a rafter you need to know the roof slope and calculate the rafter run.
This video will show you how to figure length and cut a common rafter for a gable roof using a framing square.
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The secret to making a good rafter is cutting the proper angle.