Abstract: An adjustable rack to enclose one or more electronic components in one or more enclosures. The adjustable rack includes a cabinet and, for each enclosure, a set of horizontal bars to define with micro-adjustability an actual height of the enclosure, including slots defined along respective horizontal lengths thereof, to be coupled to opposing walls at variable heights along the walls, a set of vertical bars to define with micro-adjustability an actual depth of the enclosure, including a set of horizontally slotted holes defined along respective vertical heights thereof, to be coupled to the horizontal bars at variable horizontal positions along the slots of the horizontal bars, a set of first brackets, and a set of second brackets.