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Removing a section of floor joist

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Craig Morrow

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Apr 21, 2001, 12:24:17 AM4/21/01
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I would like some advice on removing 18" from two floor joists. I have seen
the examples of using L brackets to tie the full joists to the crippled
joists. I guess I could also place additional spacers between the remaining
length of the joists. The joists are 2*8s on 16 inch centres.

My concern is that the opening is very close to the I Beam supporting the
joists. So the joiner on this side of the opening would be next to useless I
would think? I would be concerned about the joists on the other side of the
I beam twisting. The joists cross over the I beam from opposite sides of the
basement, with about 12" of overlap over the I Beam. This structure also
supports the main floor wall above.

WCM


Dan Hicks

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Apr 21, 2001, 1:34:35 AM4/21/01
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I would at the very least double up the joists on either side of the
opening. Normally you would then run pieces of 2x8 between the two side
joists on either side of the opening (at right angles to the existing
joists), then tie the cut-off joists to those. Use joist hangers on
everything.

Peter

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Apr 21, 2001, 5:44:44 PM4/21/01
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On Sat, 21 Apr 2001 04:24:17 GMT, "Craig Morrow"
<w.craig...@home.com> wrote:

>I would like some advice on removing 18" from two floor joists. I have seen
>the examples of using L brackets to tie the full joists to the crippled
>joists. I guess I could also place additional spacers between the remaining
>length of the joists. The joists are 2*8s on 16 inch centres.

If you want to remove sections of joist, you'll have to build
a frame to enclose the open space. You must also double up the joists
on either side of the hole.

The joists are there to hold things up. If you take a piece
of them out, you have to put something else back to bear the weight
they were bearing. Otherwise, you'll eventually get a sag.

Craig Morrow

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Apr 25, 2001, 12:25:58 AM4/25/01
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Do I need to double up the complete joist or just the area around joist
being removed?

WCM


"Peter " <pete...@earthlink.net> wrote in message
news:3ae1fe3d...@news.earthlink.net...

Peter

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Apr 25, 2001, 6:57:26 PM4/25/01
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On Wed, 25 Apr 2001 04:25:58 GMT, "Craig Morrow"
<w.craig...@home.com> wrote:

>Do I need to double up the complete joist or just the area around joist
>being removed?

You put in as much as you need to get some support under it.
>

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