The term “manufactured home” is the most recent label for what were once called “mobile homes” or “trailers.” They are relatively inexpensive, small, and are held to less stringent standards than modular and site-built homes.

Manufactured homes conform only to Housing and Urban Development (HUD) codes and are not required to conform to local or state building codes. They are available in three sizes: “single-wide,” “double-wide” and “triple-wide.” 

The picture in the upper right is of a manufactured "double-wide" home that has been placed on a foundation. It looks very much the same as a simple ranch style home, but closer inspection would reveal the steel chassis that can be seen from the basement. Manufactured homes are delivered to the site on a steel chassis with its own wheels.
Even if the wheels are removed and the home is placed on a permanent foundation, the steel chassis is never removed.

Because a Manufactured home does not conform to
the same standards and regulation as Modular or site-built homes, their value depreciates making it nearly impossible to obtain a mortgage. 

The advantages of a manufactured home are affordability and mobility, factors that allow buyers to make home purchases without a serious monetary or geographical commitment.

NOTE: Manufactured homes have been misrepresented as Modular homes by their owners and/or inexperienced Realtors who may not understand the difference between a "Manufactured" and a "Modular". It's also possible to not spot a "manufactured" home if the distinguishing features are concealed.

Buyers considering the purchase of a Modular home should become familiar with the the distinguishing features of these two types of houses.  Make certain to have your Realtor research the history of the property before placing an offer on a suspicious home.