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jdlogicman t1_iwqmnls wrote

You can cut shims from 2x4s and then lay plywood on top of them to create a level floor. This will raise the height of your floor slightly. You could also use leveling compound, but for that amount of slope you will have a lot of buildup on the downhill side, and it says heavy as concrete.

You could use leveling compound with filler pieces of cement board to make the process go more quickly. Cement board might have air pockets in it, so it'll be a little lighter.

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New_Insect_Overlords t1_iwqn1l4 wrote

This is the route to go, but I would recommend trying to get a look at the situation under the bathroom in the crawl space to address any rot that is causing the sagging

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Fuzzy_Chom t1_iwqo2qp wrote

This. The first question i would ask is "does the floor slope because the floor joists are compromised, or because they are sound but out of level?"

Also, how are the floors in the rest of the house? Does everything slope? This might be the difference between a bathroom floor leveling project, and a foundation project.

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jdlogicman t1_iwqox4f wrote

Absolutely correct.

My house is 100 years old, and I just learned during a foundation repair that they commonly didn't even pour footings. They also didn't properly compact the ground, so sagging soon after construction is pretty common from what I have heard. Concrete doesn't last forever....

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hammeroutremodels t1_iwuwhsu wrote

You should honestly be banned for this comment. What is wrong with you.

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