Abstract: A beam, systems, and methods for increasing the use of cargo volume in a shipping container. An example beam is configured to be removably coupled to a track having a plurality of openings and coupled to a sidewall of a shipping container and thereby cantilevered to support cargo therein. The beam includes a housing extending between a first and second end. A bracket is coupled to the second end of the beam. And a connector coupled is to the beam's second end and arranged above the bracket. The connector has an engagement notch to engage with a first edge of a first opening in the track and has a latching tab configured to extend through the first opening adjacent to a second edge of the first opening. The connector is coupled to a latch having a spring-biased blocking plate configured to move from a first position to a second position.