i have been in a few older campgrounds where it was tight, but was able to put all slides out. One trick I do is carry a stick that is about 4" longer than the opposite door side slide extends. Using that stick as a measuring tool, my wife and I use that the make sure where we park will have no obstructions. Better than finding out after we're unhooked.
John, Joyce & Libby the Yellow Lab. - Fulltime since May 2008
2005 Kountry Star FW-35LKSA by Newmar pulled by
2012 Ford F-450 Lariat; 6.7L PSD, Automatic.