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Old 05-17-2011, 01:11 PM   #1
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Joist Notch Repair question

The county inspector failed a plumbing change with the following note
"Need repair for over floor joist. ( plumbing pipe)".

This was a pre-existing issue and all we did now was to change the drain pipe and reroute it on the other side.

How do I repair this joist? This is in the basement, below the kitchen. The entire joist spans 12 ft. and is a 2 * 10. The notch is close to the end that sits on a Girder.

What's the worst case scenario? Will I have to drill a hole in the wall for the drain pipe and sister the joist to cover the notched area?

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Joist Notch Repair question-basement-joist-1-resized.jpg   Joist Notch Repair question-basement-joist-2-resized.jpg   Joist Notch Repair question-basement-joist-3-resized.jpg  


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Old 05-17-2011, 01:36 PM   #2
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they failed that? good! the people who built my house for some reason put toilets and drains right next to joists and always had to knoch them to heck and the inspector said thats ok! yeah no it wasn't.... 3/4ths the joist was gone!


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Old 05-17-2011, 01:50 PM   #3
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I would have tried to be there when the inspector was, and asked his opinion about a fix. Try using a 1/4" thick pc. of steel plate whatever width is left or the joist and bolt it on. 4 -5ft length.
This is not knowing how strict your county is though.
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Old 05-18-2011, 08:34 AM   #4
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That is a half moon notch on the bottom chord, and it exceeds IRC R502.8 limits. Talk it over with the code official who failed it and find out what he'll pass, either a relocate/repair, or reinforcement. He may require an engineer to be involved if you want to reinforce. I see this all the time. I am baffled as to why contractors don't do it the right way the first time. He could have gone through the center of the joist using a 28 dollar reinforcement plate and called it a day. Instead he went with the half moon and left a mess for posterity. Half moon notch reinforcements are certainly doable, but not as quick and cheap as a center joist reinforcement plate.
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Old 05-18-2011, 10:18 PM   #5
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Is that 2-2x10 joists side nailed to a flat plate on the wall? Or are the joists above the plate (single, as on the I-beam). Would there be room to install a double hanger under the joists if you cut out a 5" wide section and added a cross header joist to carry them? The left side is fine that close to the I-beam. What is the header joist span from the wall to the first single joist coming toward the camera, 27-30"?

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Old 05-23-2011, 10:47 PM   #6
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Thanks for all the responses! Responding to GBR's questions.. The joists are above the plate sit on the Girder beam.

The first joist sits very close to the wall. The distance between joists is 24". We ended up installing hangars on both sides of the notch and connecting the two adjacent joists. We also installed 2, 2*4s to bear the weight to the concrete floor below. Picture attached.

Pls. let me know your thoughts.. if this makes sense, overkill or otherwise.

We have other work upstairs in the kitchen and will bring back the inspector once all that is done..
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Joist Notch Repair question-after-1-resized.jpg   Joist Notch Repair question-after-3-resized.jpg  
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Old 06-05-2011, 10:09 PM   #7
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To close the loop on this one and for future reference.. The inspector approved this solution and the framing inspection passed..

Thanks to everyone for your input!


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