Abstract: A storage or cargo system clamping assembly is utilized in a freight area of a motorized vehicle and semi-permanently attaches a storage system to the horizontal wooden slats found in the interior of a motorized vehicle. This storage system has vertically disposed struts for readily accepting a threaded screw-type member, which extends, non-restrictively, through the strut member whether a shelf leg or an iron frame and engages an L-shaped member having a threaded hole corresponding to the screw. Such a storage system and clamping assembly provides great versatility to freight and cargo vehicles, allowing for easy installation, adjustment, or removal of the storage system, without damaging the vehicle or leaving any telltale markings on the vehicle that would indicate that a storage system was utilized within the vehicle.