Young Swedish Blonde Girl Wearing Necklace At The Old Travel Trailer

In the United States and Canada, the history of travel trailers can be traced back to the early 1920s, when those who enjoyed their use were often referred to as 'tin can tourists'. As time progressed, trailers became more livable and earned a new name in the 1930s and 1940s, which was the house trailer. In the 1950s and 1960s, the industry seemed to split, creating the two types that we see today, that of the recreational vehicle (RV) industry and mobile home industry. Today travel trailers are classified as a type of RV along with motorhomes, fifth wheel trailers, pop-up trailers, and truck campers.
Smaller travel trailers and pop-ups are still made with touring in mind. These generally are less than 18 feet (5.5 m) long and contain simple amenities. By design, they are lightweight and quick to set up or prepare for travel. Most weigh less than 3,000 pounds (1,400 kg) and can be towed with a large car or small truck depending upon its towing capacity. Lightweight pop-up trailers weighing less than 700 pounds (320 kg), such as the Combi-camper and Kamparoo can be towed even by small economy cars and small SUVs. Some exceptionally light travel trailers can be pulled by motorcycle. Fiberglass body construction entered the U.S. scene in 1971 with the introduction of the first U.S.-produced mini travel trailer, called the Playpac. The Playpac, invented by Steven Whysel, was the answer to the needs of the growing horde of VW "Bug" and other small-car owners who wanted a hard-shelled camper, light enough to be pulled by a small car, with a private water closet, shower and the ability to sleep six. Its ultramodern aerodynamic styling and domed skylight by the modernist Industrial Designer Toshihiko Sakow made it an instant hit. It was short-lived, however (1971–1973), as the first Arab oil embargo and the ensuing major slow-down of RV sales caused it to cease operations. The Boler travel trailer, produced earlier in Canada, soon joined the Playpac in the U.S. fiberglass light-weight class. The Hunter and Amerigo travel trailers were also on the scene by then.
Mid-range travel trailers are 18 to 25 feet (5.5 to 7.6 m) long, can weigh 5,000 pounds (2,300 kg) or more, and are generally towed with compact pickup trucks and SUVs. They have most of the amenities of the larger travel trailers, but sleep fewer people.
Larger travel trailers are made with the seasonal or full-time user in mind. These generally range from 25 to 40 feet (7.6 to 12 m) long and contain all the comforts of a luxury condominium. Because they require a purpose built tow vehicle, highway tractor or large truck or SUV, these amenity-laden homes can reach 12,000 pounds (5,400 kg) or more. While trailers may weigh in even above that, most long-box pickups have a maximum tow-weight of 15,500 pounds (7,000 kg). Multiple televisions and air conditioners are common in units of this size. Slide-out rooms and screen porches add to livability. By law, travel trailers are limited to 400 square feet (37 m2) of living area, and many models offer exactly that plus any optional slide-outs.