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Got it. Makes sense. Thanks for the suggestion. That’s exactly why I came here. I’m more familiar with web crippling of steel beams than I am with splitting in wood joists. For fun, I went upstairs and measured my kitchen floor. It slopes towards the location where the joists were cut. The...

Regarding the cost of repair, my wife has already told me to go ahead and spend whatever it costs to fix it correctly. We are quite well off (no thanks in part to my engineering career), so having to wait to get reimbursed from the electrical contractor isn’t a concern. As of right now, I’m...

Thanks, EdStainless. It’s good to know the L&I process. Getting the electrical contractor to pay to fix it without a lawsuit would be optimal. I think they did what they did because of an HVAC duct that was in their way. They should have removed the round duct and replaced it with low profile...

Thanks everyone for all the great replies. Lexpatrie — Thanks for putting it more clearly. Anything less than pre-loss condition is unacceptable. Through the course of this thread, it has become increasingly clear to me that a partial sistering of the joists is not the pre-loss condition...

Thanks everyone for the responses. Part of what I’m trying to determine is “what is the correct way?” If doing full sisters throughout is the correct way, then so be it. I’ll likely sue the electrician for damages, anyway. But I’d also need to justify the repair later on in the lawsuit. Also...

” Did not see them address the screwed connection other than calling out the allowable shear for the fasteners.” That’s what concerns me. Wood being wood, I doubt you’d get the full allowable shear strength out of those fasteners while under an actual load.

The inspector already signed off on it a couple weeks ago when the work was completed. I need to call him today to see if he can reverse his acceptance or do something about it otherwise. **Edit - or call him tomorrow. Apparently, they are closed due something called Indigenous People’s Day...

I’ll load up beam boy later today to compare two 2x8 sisters vs a single 2x8 sister.

There’s about 7-1/2” clearance above the cable. I just went down and remeasured. The span is 14 feet. The place where they effed up the joists is at 6 feet (see photo). I meant FEM for the Skyline bracket, not so much the wood. But you bring up exactly what concerns me. Wood failure isn’t...

Thanks PhamEng and XR250. I was afraid that a larger sister like that would be the answer. That’s a lot of drywall removal, but right is right. I haven’t gone into a detailed FEM analysis of the Skyline repair plates, but something about those things doesn’t sit well with me.

The beams are 2x10 nominal, which is 1-1/2” by 9-1/4” actual. There is about 6-1/2” material left in the beam above the holes, so the beam is effectively 1-1/2” by 6-1/2”. I don’t see any nick's in beam where he cut away the gypsum board. That’s not an issue. The metal plates in the photos are...

Hi Everyone, I’m a mechanical PE and could use some advice on the structural repair of a botch job an electrical contractor did at my house. I’ve attached some photos for reference. I have about a dozen 2x10 floor joists over my garage. The kitchen is directly above the garage. The 2x10 joists...