There are 3 weight measurements that are important. Rating, Tare Mass and Payload. These are marked on the container wall, usually on the door in the case of an end-loading dry cargo container. Rating is the maximum permissible weight of a container plus its contents. The Rating of a 20' dry cargo container is 24,000 kgs. (52,900 lbs.) and a 40' - standard or high cube - is 30,480 kgs.