Prefabricated structures are buildings that are constructed using pre-made components. They are built either entirely or partially in a factory or other manufacturing site, and then transported and assembled onsite. There are different types of prefabricated structures like modular homes, transportable sections, and mobile homes. Prefabricated construction offers benefits like reduced construction time and costs compared to traditional onsite building. However, transporting and installing the premade components requires heavy equipment and skilled labor.