The size of home is 16 feet (4.8 M) X 16feet (4.8M) consisting of 2 bedrooms, a kitchen and a bathroom. This unit is connected back to back to make a duplex unit 16 feet x 32 feet. We intent to import all walls for this unit. The walls include all exterior walls, party wall reparating duplex unit, all interior walls, roof panels and floor panels.The roof panels spanned 16 feet cross supporting walls and 2 feet overhang (1 foot each side) with mid span support at 8 feet. The roof low sloped shed roof, but they have 1 M high snow load in winter. If your prefab home panel with metal surface with urethane core insulation meets design requirements of this home, please send us panel specifications to review our engineers. The panel capacity for structural requirements including lateral force design and roof load and connection details of the panels are very important properties of the design and construction of this home. If the panels you produce are fit to our design requirements, we will send you our design with which you can figure out all the panels for duplex unit needed and how many units in 40 foot container can fit. And prices CIF Korea Port. Please send me your panel specifications, if it meets all requirements. Thanks Chae Ko KOAM Enterprises, Inc. Company Name: KOAM Devco, Inc Street Address: P O Box 6023 City: Carefree Province/State: Arizona Country/Region: United States Zip: 5377 Telephone: 1-480-266-4409 Fax: 1-275-1891