We've got a 2004 Camper we put on a 2011 Dodge 3500 4x4. Stock height truck, but still need to raise the camper bottom to more than 3 feet high to get it in.
Overall with the A/C unit on top as the high point, It is at just under 11 1/2 feet.
We'd need a 12 foot door to get it into a garage...