Home » Training » Trailer Glossary » Container ContainerA Container (Shipping Container) is a standard-sized rectangular box used to transport freight by ship, rail, and highway. During highway transport, the container is mounted on to a chassis, which is pulled by a tractor. Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Reddit (Opens in new window) Reddit Share on Pinterest (Opens in new window) Pinterest Share on LinkedIn (Opens in new window) LinkedIn