Lifting a CakeBoxx lid can be done any one of several ways.
First and simplest, a standard medium sized forklift truck can use a commercially available spreader bar to lift the lid off, set it down and unload the cargo in a fraction of the time required for unloading cargo through the doors. In many parts of the world side loading trailers lift containers off and set them on the ground. These trailers (A Hammar 151 is shown here.) will lift off CakeBoxx lids just as easily.
The CakeBoxx company will also provide an inexpensive, wheeled lifting gantry for companies wanting to open more than one or two CakeBoxxes a week. Companies wanting to load and unload at maximum speed (more than two or three CakeBoxxes per hour) can use specialized, fixed base lifting assemblies that can lift as many as three 20' CakeBoxx lids at one time, while the decks remain on the trailer(s.)
That's open access to 60' of cargo space, all at one go.