What is a park home?
Park Trailers are recreational vehicles primarily designed as temporary living quarters for recreation, camping or seasonal use. They are built on a single chassis, mounted on wheels and have a gross trailer area not exceeding 400 square feet in the set-up mode. Each Park Trailer is certified and built in compliance with the ANSI A119.5 standard.

How big are park model homes?
Two different types of Park Trailers are offered. One type is 102" in width and is designed for frequent travel on the highways while the other and more popular type is 11' or 12' wide and must be transported with special movement permits from the state highway department. The 8' 6" unit typically is expandable when it reaches its destination utilizing slide-outs or tip-outs. The wider units are typically sited in a resort or RV park providing a more permanent vacation property.

http://www.canterburyrv.com