If a Common rafter has a rise of 12†and a run of 12â€, and a Hip rafter off a 90’ corner has a rise of 12†and a run of 17â€, what would be the run of a Sub-Hip on an octagon?
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12.98871" or 13". If your talking about the Octagon Hip run. I don't know what a Sub-Hip is.
looks like we were both waiting for that one
We use the term “Sub-Hip” for any Hip that runs from a corner other than a 90’ and “Compound Hip” for a Hip that encompasses two different pitches. . Thanks for the info. It’s hard to believe that it’s only 1” off a common run.
It’s hard to believe that it’s only 1” off a common run.
Probably because of the 17 on the 45 hip, but when you look t the drawing and see how the hip runs t 67.5 degrees it will make sense. After you scribe your first Octagon hip using 13 on the framing square with whatever pitch you're framing with you will see how the plumbcut fits perfect.Joe Carola
Believe it! nothing else works or you would not of ask :)
13" or so close that 13" works fine
Never heard the term sub hip before, but 13 works on octagon hips.
Here's an Octagon and Regular hip run using 12" run.
Forgot to draw the Octagon lines in.