container house 1. 20ft=15m2 2. prefab or modular 3. customized cabin houses container house(mobile home/prefab homes):20 feet: Option one: four sets of beds without bathroom;Option two: two sets of beds with one bathroom on one end;40 feet:Option one: Duplex with 2 bathrooms;Option two: Office and living with 1 kitchen, 1 bathroom, 1 dining room, 1 office and 1 bedroom1.Safety and reliable light ...