Flat pack containers are modular, which means although they come in three sizes, they give you the flexibility to create areas of storage space beyond those three sizes. Join them up end-to-end, or side-by-side with a linking kit to the size you require. For instance, joining up a 4m and a 2m flat pack container will give you near enough the equivalent of a 20ft shipping container, while three 4m units give you a 40ft shipping container. For reference, a 3m flat pack container is around the same size as our standard 10ft shipping containers.