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IllegalThings t1_ixzna61 wrote on November 27, 2022 at 5:19 PM

Tldr, if you’re even able to (unlikely) it can only be up to a 4” notch.

Maplelongjohn t1_ixzrcts wrote on November 27, 2022 at 5:47 PM

Nope

There is a chart showing the size of.joist and the size of notch permitted.

4" is definitely not listed there for this floor system.

Those look like 2x10 to me.