In CT, containers represent the most important loading unit, as they can be transported by all means of CT transport. Containers are also used in maritime shipping, which is why hinterland transport in particular can be handled by CT. The standardization of containers makes it easier to switch between modes of transport, as the handling equipment in the terminal is geared to standardized dimensions.

There are different types of containers. The type of container suitable for transport depends on the goods to be transported. 20-foot and 40-foot containers are mainly used in CT.

On the door side, containers are identified by various markings containing important information for players along the transport chain to ensure smooth operation.