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Old 07-10-2008, 04:42 PM   #16
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Cantilever floor joists


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Originally Posted by orange View Post
The idea of the "girder over the existing wall" was to get good support for the roof.Since I plan to change the roof line I could move a ledger higher than the current shed roof. Bring the new roof line to seat on top of the girder.I could even have some truss structure to attach to the new ledger and to the girder that would carry the roof over the cantilevered section.
What type of roof design were you thinking of. if you are keeping the shed roof design and want to install a girder with the roof rafters you are not going to have much pitch for the roof. it will be close to flat, Am I understanding you correctly. BOB

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Old 07-15-2008, 01:44 PM   #17
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Cantilever floor joists


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mu question is: wouldn't it be much safer, yet not that much more difficult, to have the extension sit on maybe three pillars that can be 4x4 or bigger PT lumber set in concrete, rather than cantilevered ?
Yes that would be much easier and simpler. However, it is a cottage and there is a requirement to keep your current footprint. If you have post and beam (closer to the lake) you run afoul of some bylaws.
So the cantilever was an attempt to ain space without changing the footprint.
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Old 07-15-2008, 01:51 PM   #18
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Cantilever floor joists


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So the cantilever was an attempt to ain space without changing the footprint.
thanks for the clarification. your dipsy-doodling around the code reqs is admirable.
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Old 07-15-2008, 02:45 PM   #19
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Originally Posted by Joe Carola View Post
Run your new joists back to the house and be done with it, that's all you need to do. The roof can sit on the wall, that's all you need.

Why don't you just frame a gable roof to match the existing house roof with the rafters running on the side walls with the same pitch?
Thanks for the comment Joe. I've attached a picture of the back porch we put on in 2006. It has 3 big-foot posts (54" in ground) with 6x6 and 2x10 beam.
I was thinking of doing another hip roof with full ceiling.
But gable approach is another one we have thought about.
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Old 08-19-2012, 07:40 PM   #20
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Cantilever floor joists


A picture of finished porch to complete the thread.
I did go with a 22" cantilever... 24" or more would have required an engineer.
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Last edited by orange; 08-19-2012 at 07:45 PM. Reason: Complete the thread with a picture
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