1 Numbers represent an ordering by significant words. Various colorings, defined here, differentiate National Historic Landmarks and historic districts from other NRHP buildings, structures, sites or objects.
- A Class A Motorhome, the largest and most luxurious of all RVs, has an average height of 10 feet, and can range from 21 to 40 feet in length. This RV typically requires a garage with a clearance height of at least 14 feet, and 45 to 50 feet in length depending on how much additional storage you wish to have. A Class C Motorhome, which has a distinctive cab-over bunk, has an average height of about 10 feet, and can range from 21 to 35 feet in length.
1 Lightweight trailers might slightly increase the fuel costs for the tow vehicle, while Class A motorhomes average 8-10 miles per gallon, with a typical Class A fuel tank holding 100-150 gallons. 2  At $2.50-$4 a gallon, filling the tank could cost $250-$600 to travel 800-1,500 miles. Lightweight trailers might slightly increase the fuel costs for the tow vehicle, while Class A motorhomes average 8-10 miles per gallon, with a typical Class A fuel tank holding 100-150 gallons. 2  At $2.50-$4 a gallon, filling the tank could cost $250-$600 to travel 800-1,500 miles.