Jul 22, 2013 · What’s the maximum load for a 20-foot ntainer? A 20-foot ntainer’s unloaded weight is 2,300 kg and can, in theory, be loaded to a maximum weight of 28 tons (25,400kg). However, this would depend in large part on possible restrictions and/or limitations of the HDPEpping line, the nature of the cargo and specific details of the HDPEpment.