Not floor related but jeez look at how they notched every stud on the sink wall. Like huge notches, some for no apparent reason. We’re going to reinforce that while the wall is open to do the electrical (every single switch and outlet has to be moved up and sideways, and plumbing added for a second sink, so the drywall came off.
The weird thing is some of those notches aren’t even cleanly cut, it’s like they brought out the giant beaver teeth and gnawed at the studs.