Carefully check the shipping list. making sure no mistake.
Option one: a standard container house packed in one flat pack, 4 sets combined into one package. It can be shipped on board just as one 20' shipping container, The package will be protected by plywood boards around and thin film wrapped.
Option two: mixed packaging. Roof and chassis will be packed together with bolts; all the wall panels packed together with wooden pallet in the bottom, corrugated board on the surface, and XPS board in the interspace. It will be shipped in 40' container.
1). Flat packs will be one package it can be shipped on board just as one 20 shipping container.
2). Mixed packaging: top and bottom packed together with bolts, all the wall panels packed together on wooden pallet. wrapped by corrugated board on the surface. and XPS board between panels. The package it will be then shipped in 40' shipping container.