It also means that the goods in a full, well-stacked container will not move about and will remain safer from damage.
Each shipping container has a unique identification code, consisting of letters and numbers. Some containers are leased from container leasing companies and some containers are owned by the ship owner. The numbers and letters are used in all papers to keep track of the container at sea and on land.
Most containers are transported to a port by truck and some on rail wagons. On arrival, the driver is directed to a storage area where the container is stacked along with other containers destined for the same port. If the container has been stacked properly, the container will be then moved onto the ship.