These large cases were custom built by C&C Cases in California for staging equipment. They have been designed to fit longways across the width of a transport trailer or two abreast in the other direction.
 

Cases have two main cavities lined with 6" of foam on all sides and 3" at bottom.
 

Made from 1/2" ply coated with ABS sheet for weather protection, and aluminum and steel tongue and groove extrusion and corners. (1" ply bottoms and one-side additional 3/4" reinforcement ply plate)
 

Latching lids cover entire length. Lids have side, end, and top handles.
 

Cases have multiple side handles on every side for easy multi-crew navigation and control.
 

8x4inch locking urethane wheels distribute even the heaviest loads.
(two of the cases have optional latching vertical extensions - 4th image - that raise total height up to 106". You could easily modify these to suit height needed). Heavy-duty doesn't begin to describe these.

Multi height loading dock access available for your truck to pick up (pick up only). You can modify to suit your project. Other even larger cases also available. Keep your equipment safe on its journey.