Modularly expandable enclosure

A modularly expandable enclosure comprising:

• a top end plate;
• a bottom end plate;
• and
• one or more elongated tray modules vertically between the top end plate and the bottom end plate, wherein the top end plate, the bottom end plate and the one or more tray modules define at least a portion of an interior space of the enclosure;
• wherein opposite vertical ends of each tray module define an upper end connecting portion and a lower end connecting portion, wherein the upper end connecting portion is configured for engagement with the top end plate and further configured for engagement with a lower end connecting portion of a vertically upwardly adjacent module tray, and wherein the lower end connecting portion is configured for engagement with the bottom end plate and further configured for engagement with an upper end connecting portion of a vertically downwardly adjacent tray module;
• wherein the top end plate is a 180 degree equivalent of the bottom end plate;
• wherein each of the one or more elongated tray modules has an inverted U-shade structure including a vertically extending rear wall and vertically extending side walls projecting forwardly from the rear wall, and wherein the interior space is open forwardly from the rear wall and open between the ends of the forwardly projecting side walls such that the tray module has an open front.