Hollow Spots in Living Room

These are all the hollow spots I found in the living room. It sounds terrible and feels like I'm walking on a springboard. The other areas are the same but I didn't outline them as the furniture from the living room was in the way plus I ran out of tape.



This is a picture of the non-flatness of the floor. It shows 1/4" above the floor on the end of my 8' straight-edge.

The lack of flatness isn't just a cosmetic issue. You can see in the pictures above how many hollow spots there are plus it makes our couch rock which can't be good for it's frame.