Constructing a modular home

Before construction, all building plans must be reviewed and approved by the state where the manufacturer will sell the home.
They must be built to the code for the state where the home will eventually be placed.
Modular homes begin as components that are designed, engineered and assembled in the controlled environment of a factory.
All walls, flooring, ceilings, stairs and carpeting are completed in the factory before shipment.
A final inspection by a third party, hired by the manufacturer, checks for flaws. If any are found, they are fixed.
When the home passes inspection a label is placed on the home certifying it is in compliance.
The manufacturer will give the modular builder - or dealer - the foundation specifications when the home is ordered.
After construction. the separate modules are loaded for transport, usually on a flatbed trailer.
A modular builder is the one who receives and "builds" the home on the site. The home will have been purchased from a dealer, not directly from the manufacturer. The dealer may be the builder or may have hired someone to serve as the builder.