Class B cabin noise, how much is too much?

To add to other inputs: you can track down some rattles which are usually plates, stove grill,microwave plate,pots,cups but squeaks and squawks are a different source usually. I found a squeaking noise coming from the bathroom door behind the driver seat due to a missing little stick-on tab to keep the door tightly closed. Can be quite annoying. You dont have the bulkhead squeeks and groans I got with two C mhs with fiberglas cabs. Sliding door might need adjusting or even a poorly fitted window. Make a list and visit your dealer with the ones you cannot trace. I generally find my PW very quiet chassis and bodywise with the odd noise from the stuff in cabinets--my wife tracks the noises down and deal with it!
Good luck and happy rving.