Do I need to sister this ceiling jost?
Home Improvement Asked on June 7, 2021
A plumber came to push my DWV pipe back so I could decreased my soffit/bulkhead. In the process, he cut a bit into one of my 2×8 ceiling joists. Not ideal. Wondering if I need to sister the whole joist, or if I can just glue/screw a sistered 2×8 for a 4 ft run or so.
One Answer
The notch at the bottom is fine - not even close to hitting code requirements... which gives you 1/4 joist and that is the best place to notch - near the edge.
You get 1/3 the joist height for holes. I don't think yours meets that even if you add the inch shaved off on the bottom. You could sister something over the hole but for something that small your sister would be for aesthetics as the joist is not going to feel any tension near the end like that.
Answered by DMoore on June 7, 2021
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