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Old 08-05-2019, 04:24 PM   #31
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Re: Legal joist size


Stairs to the attic built over the existing and 6' dormer for landing and a hall? Rob 3' from kitchen? Raise the entire back roof? Common in nj and only twice the work.
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Old 08-08-2019, 04:29 PM   #32
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Re: Legal joist size


New attic pics:

Attic door, 5" I suppose it was originally 6" but dried out over the years.
https://beta.photobucket.com/u/reall...1-e117ff279d25


Attic joists are 4"
https://beta.photobucket.com/u/reall...1-d096abb4b108

Joists are 18" apart
https://beta.photobucket.com/u/reall...e-0185249242a5

Dicks left plastic on some insulation bundles.
https://beta.photobucket.com/u/reall...9-3bd8780fc119

It was hot up there...
https://beta.photobucket.com/u/reall...d-941a3f1b2b4a
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Old 08-08-2019, 04:39 PM   #33
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Re: Legal joist size


I bet that was good
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Old 08-08-2019, 04:54 PM   #34
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Re: Legal joist size


Two things about spiral staircases:

1. They suck as far as carrying anything up the stairs.

2. They give the illusion of saving space but actually don't.

I was toying with using one to access the loft in my barn. I ended up building a regular set of stairs. What I found out was after it was built the area under the stairs is great for storage. I actually gained space due to the dedicated storage.
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Legal joist size-before-stairway.jpg   Legal joist size-stairway.jpg  

Last edited by HenryMac; 08-08-2019 at 05:00 PM.
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Old 08-08-2019, 04:55 PM   #35
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Re: Legal joist size


Quote:
Originally Posted by reallylongnickn View Post
New attic pics:

Attic door, 5" I suppose it was originally 6" but dried out over the years.
https://beta.photobucket.com/u/reall...1-e117ff279d25


Attic joists are 4"
https://beta.photobucket.com/u/reall...1-d096abb4b108

Joists are 18" apart
https://beta.photobucket.com/u/reall...e-0185249242a5

Dicks left plastic on some insulation bundles.
https://beta.photobucket.com/u/reall...9-3bd8780fc119

It was hot up there...
https://beta.photobucket.com/u/reall...d-941a3f1b2b4a
So to use the center of the building for a room you have to new joists from the center to the outside wall, if the main floor is 2x8 that should work upstairs to, You would have to stay as close as you could to 16" on center for 2x8. but if you want to cut a 5 ft square hole in the floor You would likely have to use 2x10 for joists. Then you could stay with the 18", that would just waste some plywood but save on joists.
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Old 08-09-2019, 04:20 PM   #36
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Re: Legal joist size


Quote:
Originally Posted by Nealtw View Post
So to use the center of the building for a room you have to new joists from the center to the outside wall, if the main floor is 2x8 that should work upstairs to,
If I was in the field of construction, I would think this is a dumb Q, but...
So the 2x4's cannot be parallel beside each of for strength right, the 2x4's must be replaced with either 2x6 or 2x8 as you stated?

@HenryMac , those stairs don't appear to be overly steep either

Last edited by reallylongnickn; 08-09-2019 at 04:30 PM.
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Old 08-09-2019, 05:27 PM   #37
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Re: Legal joist size


Quote:
Originally Posted by reallylongnickn View Post
If I was in the field of construction, I would think this is a dumb Q, but...
So the 2x4's cannot be parallel beside each of for strength right, the 2x4's must be replaced with either 2x6 or 2x8 as you stated?

@HenryMac , those stairs don't appear to be overly steep either
You would leave the old there so you don't loose the ceiling but the 2x4 are not a floor.
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Old 08-09-2019, 06:51 PM   #38
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Re: Legal joist size


Quote:
Originally Posted by reallylongnickn View Post
@HenryMac , those stairs don't appear to be overly steep either
They meet code in regard to run/rise.
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