A crate is a large shipping container, often made of wood, typically used to transport or store large, heavy items. ... Crates can be made of wood, plastic, metal or other materials. The term crate often implies a large and strong container. Most plastic crates are smaller and are more commonly called a case or container.A storage container is a defined, specific location in high-volume storage. It resembles a folder (or directory) in a computer's file system, although there are some differences in the way files are handled. ... In addition, a container cannot be directly renamed.