IF you are considering in purchasing or renting a recreational vehicle, you should consider how they are classified. The RV world is divided into two  categories: towable RVs and motorized RVs. Towable RVs can be a pulled by a car, van, SUV, or pickup truck (depending on their size) and are small enough so as not to require a special highway movement permit. There are several sub-categoies with towable RVs, including travel trailers, folding camping trailers, fifth wheels, and truck campers.

The classes that you reference refer probably relate to Motorized RVs which are categorized into class A, class B, and class C motorhomes. Below you'll find a description of the three classifications of motorhomes and if you want more information, visit GoRVing.com, which an incredible resource for anyone planning to invest in an RV.

Class A motorhomes are the generally the most expensive and luxurious RV category. Units range in weight from 15,000 to 30,000 pounds and can be as much as 40 feet in length. Class A motorhomes are equipped with most of the creature comforts you'd find at home. Some even have built in hot tubs. Class A motorhomes are frequently constructed on custom undercarriages or on a 3-10 ton truck chassis. This class is known for its automatic slideouts which extend a portion of their exterior walls to expand their living space. Class A motorhomes usually have full kitchens, heating, air conditioning, a self-contained toilet, water tanks, faucets, sinks, a gas supply, a separate 100-125 volt electrical system or generator, and a full array of appliances and entertainment features. They can sleep up to eight people, depending on the model and the floor plan. Of course, all those features don't come without a cost—prices range from $100,000 to more than $500,000!

Class B motorhomes, also commonly known as van conversions, are the smallest fully enclosed motorhomes. They are built on a van chassis with elevated roof lines but no modifications to the length or width of the original chassis. Class B motorhomes generally weigh  between 6,000 to 8,000 pounds and are 17 to 19 feet in length. Many RVers prefer Class B motorhomes receive because they are less expensive to own and operate, are extreme versatile and easier to drive than their larger brethren. When not RVing, many Class B owners make use of their units as family vehicles. Class B motorhomes often have kitchens with a refrigerator (or ice box), heating, a self-contained toilet, a fresh and waste water tanks, convertible/folding beds, a gas supply, and 110 VAC and 12VDC electrical outlets. Class B motorhomes can sleep from two to four people and range in cost  from $40,000 to more than $100,000.

 Class C motorhomes are scaled-down versions of Class A motorhomes. They range in weight from 10,000 to 12,000 pounds and range from 20 to 31 feet in length. Class C motorhomes are generally constructed on a larger van chassis. The driver compartment is similar to a van, with a large box in the back. Class C motorhomes often have a sleeping loft above the cab and a bedroom in the aft of the unit. Some Class C units also have slideout to  extend the motorhome's living quarters. Class C units usually are equipped with a kitchen, heating, air conditioning, a self-contained toilet, water tanks , faucets, sinks, a gas supply, a independent 100-125 volt electrical system, and a full array of appliances and entertainment features. Class C motorhomes can sleep as many as ten people depending on the model and the floor plan. Prices range from $50,000 to around $150,000.