I have a family of 8 6 kids myself and wife are TT sleeps 9 comfortably but I noticed allot of the camp grounds state 6 max per site what do large family's do ?
A call to whatever park you were interested in would be a good idea. But I would bet that most would allow a family of 8 in one site. Most likely a rule to prevent multiple families or groups of adults from staying in one site.