Side Opening Shipping Container 20ft container is made of corten steel. The floor is made of hardwood. The container has an unloaded weight of 3,550 kg and a maximum payload of 26.930 kg. This is a total gross weight of 30.480 kg. The double door container – side door 20 feet high cube has the following dimensions on the outside: 6.058 x 2.438 x 2.896 (length x width x height in mm) and inside: 5.898 x 2.287 x 2.607 (length x width x height in mm) . The door opening in the shorts is 2.226 x 2.494 mm (width x height). The opening of the side door measures 5,846 x 2.494 mm (width x height). The volume of the container is 35.2 m3.