This is a pet peeve of mine. I wish reservations sites would just tell you the actual site length. My local county parks department does this and it eliminates all the confusion. CA State parks scares rvers away with their typical 24' max trailer length. I've stayed in their sites that were over 60' long and had no issues on the access road yet they had 24' max trailer length. My fifth wheel is a model 24 that is really 27' but towed is under 23' so what length do I use? Hooked to my truck I am 42' total. Sorry for the rant.