We have had a squeaky floor in our 264BHW since day one. The first step you take in the trailer and the last step you take out is a nice loud squeak. Brought to the dealer to fix. Later on went to pick it up after they said they fixed it and what do you know? It still squeaks. I questioned them and they say "well it sounds better than it did before"...
...Then proceeded to tell me the only way to fix it properly is to take up the flooring and trim the wood that is rubbing on the frame. Supposedly they put a wedge under the floor as the "fix". Going to try to look at this myself at some point because it is driving me nuts!!