Captain Containers can provide this 20’ flat rack, it has a sturdy basic frame for carrying a wide variety of large, heavy, and odd shaped loads. Basically, a flat rack’s main purpose is to carry products with special dimensions that cannot be loaded into standard containers. This type comes in two types: a fixed end and a collapsible end. The difference between the two types is at the front and the backside. The fixed end has a front and back side that cannot be folded, and the collapsible end has a foldable front and back side.