Washington Is it a Manufactured / Mobile Home? Is a type of prefabricated home that is constructed off-site in a factory setting and then transported to its intended location. It is sometimes referred to as a manufactured home, mobile home, or prefab home. Unlike a traditional site-built home, a manufactured home offers a variety of advantages, such as shorter construction time, lower cost, and greater flexibility in terms of design and customization. There are two main types of manufactured homes: single-wide and double-wide. Single-wide homes are typically 16 to 20 feet wide and up to 90 feet long, while double-wide homes are typically 24 to 28 feet wide and up to 90 feet long. Both types of homes are usually built on a steel frame and typically feature an open floor plan, and can be customized with a variety of amenities.