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Building Construction - Building Construction Industry Discussions.
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Posted by Lou on March 21, 2007, 10:14 am
I'm looking at buying a small single story house to flip. It sure
could use a small addition in the kitchen. To keep cost down I would
just extend the floor joist to create an overhang. For the life of me
I can't remember if the joist are 2x8's or 2x10's. Either way do you
have a calculation to determine the maximum length for both lumbers? I
don't want to dig for a foundation so overhang is the way to go. Also,
is there a way to determine the maximum overhang if I were to double
the lumber and use a flinch plate?
Lou
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Posted by Michael Bulatovich on March 21, 2007, 10:41 am
> I'm looking at buying a small single story house to flip. It sure
> could use a small addition in the kitchen. To keep cost down I would
> just extend the floor joist to create an overhang. For the life of me
> I can't remember if the joist are 2x8's or 2x10's. Either way do you
> have a calculation to determine the maximum length for both lumbers? I
> don't want to dig for a foundation so overhang is the way to go. Also,
> is there a way to determine the maximum overhang if I were to double
> the lumber and use a flinch plate?
> Lou
Are you asking me?
--
MichaelB
www.michaelbulatovich.ca
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Posted by Lou on March 21, 2007, 12:41 pm
>
>
> > I'm looking at buying a small single story house to flip. It sure
> > could use a small addition in the kitchen. To keep cost down I would
> > just extend the floor joist to create an overhang. For the life of me
> > I can't remember if the joist are 2x8's or 2x10's. Either way do you
> > have a calculation to determine the maximum length for both lumbers? I
> > don't want to dig for a foundation so overhang is the way to go. Also,
> > is there a way to determine the maximum overhang if I were to double
> > the lumber and use a flinch plate?
> > Lou
>
> Are you asking me?
Yep
Lou
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Posted by Michael Bulatovich on March 21, 2007, 3:05 pm
>>
>>
>> > I'm looking at buying a small single story house to flip. It sure
>> > could use a small addition in the kitchen. To keep cost down I would
>> > just extend the floor joist to create an overhang. For the life of me
>> > I can't remember if the joist are 2x8's or 2x10's. Either way do you
>> > have a calculation to determine the maximum length for both lumbers? I
>> > don't want to dig for a foundation so overhang is the way to go. Also,
>> > is there a way to determine the maximum overhang if I were to double
>> > the lumber and use a flinch plate?
>> > Lou
>>
>> Are you asking me?
>
>
> Yep
> Lou
I'm sorry but I can't answer, and I'm pretty sure that I shouldn't answer.
On the first point, there's way to little information for anyone to
intelligently answer. On the second point, even if I did have enough info to
address the first point, I'd be doing work, and taking risk, with no reward
other than your gratitude. I've got paying work I have to do, and then in my
free time I've got a bunch of other things to do. My discretionary time
around this time of year revolves around hockey playoffs, "the Provincials",
and then tryouts for next year.
Based on what you've said, I'd be surprised if your approach is going to be
able to work, or cost effective once you figure out how to do it right. One
doesn't typically "extend" a floor without foundations or bearing of some
kind, and I think you mean "flitch plate". Flinching is what I'm doing.
--
MichaelB
www.michaelbulatovich.ca
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Posted by longshot on March 21, 2007, 3:55 pm
I have seen it done, the new joists had to be sistered up with the existing
& they had to extend a minimum of 2/3 of the distance back inside the main
structure. IOW, not more than 1/3 of the joist length can be cantelevered.
keep in mind i was the designer only the builder & i thought the finished
project was a little too "boucey" when we completed.
JMO
Rob
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