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TJI Joists on Load-Bearing Walls

TJI Joists on Load-Bearing Walls

TJI Joists on Load-Bearing Walls

(OP)
I've got an interior load-bearing wall that will have TJI joists bearing on it from both sides. One side has 9 1/2" deep joists, the other has 16" deep joists, and the tops must be at the same elevation. How should this be detailed? Would the 9 1/2" joists have blocking beneath them to get their tops at the same elevation as the 16" joists? Is this ever done, or should I just use the (more expensive) 16" joists on both sides (or make them all continuous 16" joists)?

Thanks.

RE: TJI Joists on Load-Bearing Walls

I doubt you are saving much by changing sizes. You may be able to go down in size if you make them cont. as long as the interior wall can take the additional load.

RE: TJI Joists on Load-Bearing Walls

If you use continuity over the wall, you might get away with 14" deep joists on both sides.

Mike McCann, PE, SE (WA)


RE: TJI Joists on Load-Bearing Walls

(OP)
11 7/8" joists work for the continuous span. Thanks for the insight.

RE: TJI Joists on Load-Bearing Walls

A couple of ideas, including yours I think.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: TJI Joists on Load-Bearing Walls

(OP)
KootK, I like detail 1 better than my idea (detail 2) actually. Thank you!

RE: TJI Joists on Load-Bearing Walls

You're welcome. Maybe one more for the hanger adverse. They're out there.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: TJI Joists on Load-Bearing Walls

or full height studs

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