How were double wides constructed back in the 1960's?

In the 1960s, double-wide mobile homes were typically constructed using a combination of wood framing and metal siding. The homes were built in two sections at the factory, which were then transported to the site and joined together. Insulation was often minimal, and the interiors featured basic finishes with options for customization. The construction process emphasized affordability and efficiency, catering to the growing demand for mobile housing during that era.