An adjustable shelf unit includes a pair of parallel, vertical stanchions each defining a vertical channel. A pair of adjustable braces each has horizontal support surfaces and a proximal end slidably retained in a respective front channel. A locking means is coupled to the proximal end of the braces for releasably securing the braces at a freely selectable elevation in the front channels. A planar element, such as a shelf, is disposed above the braces slidably coupled to the stanchions such that the horizontal surfaces of the braces support the first planar element for load bearing. The horizontal surfaces of the braces remain horizontally disposed as the braces are moved to a freely selectable elevation in the front channels.