Evolving from container housing, these structures utilize lightweight steel and color-coated composite panels with welded roofs and floors. They feature integrated internal downspouts and can serve as offices, hospitals, dormitories, classrooms, or temporary shelters. Capable of rapid assembly, they offer wind resistance, fireproofing, and seismic resilience up to magnitude 8. The exterior design is aesthetically pleasing, with customizable materials and components available.