Hello,

Recently had a sunken living room raised in January (about 8 inches of wood subfloor built on top of previously existing subfloor). Things looked great at first, but now I'm noticing the room appears to be sinking again. There's about a 5 degree incline between the adjacent kitchen and newly raised living room, which I didn't notice before. The furtinute no longer sits flush on the wood, and now only the back corner of the sofa legs touch the floor due to the incline.

Was something done incorrectly? I know it can be tough to achieve a perfectly level outcome, and I'm hoping this was just the process of the new floor "setting" rather than something that will continue to worsen and need major overhaul. Any thoughts?

Framing lumber is sold at a moisture content of 19% or less. It usually dries to around 12%. When it does dry out after it has been installed, it can shrink over an eighth of an inch depending on the original width of the joists. Once the lumber has dried to ambient conditions it will remain a constant width.