Industrialized housing is defined as that type of living unit that is substantially completely built in a factory and shipped to the site and then erected on a pre-prepared foundation in one or two days. The unit may be similar in appearance and construction to conventional units, or maybe drastically different in appearance and/or construction. The basic structural methods used are the box, panel, beam and column or the structural system. There are many reasons why industrialized housing is capturing more of the market each year. One of the major reasons is cost. One study in Missouri indicates that 80% of the people cannot afford a new conventionally built home. As a result, over one-third of the new living units built are mobile homes which are at present the most economical type of factory-built unit. In general, the mobile home can be purchased at less than 1/2 the cost per sq. ft. of a conventionally built home