Welcome to the forums... this subject has been debated often over the 15 years I've known about this site. I made the mistake of believing those that said 36' MAX. Did not take long to realize that's not true so traded for a 40' loosing a fair amount of money. Once we went half time, size and slides were more important than the few sites we cannot get into. Again costing $$$. I built my MH bay big enough to hold a 45' although we are happy with our 42' which in Yellowstone becomes a 40'. :W I now advise buying more MH than you think you need ONE TIME...not like what I did. Many that say go short have short rigs... how do they know where I can fit a big rig and we have camped all over the country mainly staying in public CGs. USFS CG's that do not take reservations are our favorites... do not show up Friday hoping to find a site big enough, but late Sunday or Monday there are plenty of sites as the working folks have gone home. Not sure who comes up with the lengths as one of my favorite USFS CG in the Tetons says 28' max and I.can get my rig in 3 of the 12 sites. one very easily. Often the post for your payment that's in the way making it hard to get into the site. 36-38' is the largest for gas MHs BUT many have limited Cargo Carrying Capacity... for full time you need a DP.
