Conventional: A Travel Trailer designed to be towed by a car, van, or pick-up truck with a bumper or frame hitch (Approximate Size: 12 to 35 feet).
Pop-Up: A Travel Trailer with sides that collapse, and is designed to be towed by a car, van, or pick-up truck with a bumper or frame hitch (Approximate Size: 15 to 23 feet).
Fifth-Wheel: A Travel Trailer designed to be affixed and towed by a vehicle that is equipped with a special hitch affixed to the bed of a tow vehicle (Approximate Size: 21 to 40 feet).
Truck-Mount: A Travel Trailer designed to be affixed to the bed of a pick-up truck (Approximate Size: 18 to 21 feet).