20ft prefabricated shipping container house

long beam: 3mm thickness galvanized steel

short beam: 2.5mm thickness galvanized steel

secondary beam: Z-shaped galvanized steel

column on the corner: 3mm thickness galvanized steel

wall panel: 75mm EPS sandwich board

roof panel: 75mm PU sandwich board

Floor panel:  18mm plywood panel+12mm  laminated floor  

                     or 20mm cement-fiber +2mm PVC

door: Steel door,740mmx1950mm,  or customized

window:  PVC Sliding window with Rolling shutter, 

              1100mmx800mm, or customized.

electronics, water supply and drainage: according to the local law

furniture and appliance: Customized-made