Abstract: A universal shelving unit is provided with opposite pairs of legs having a cross brace extending between each pair of legs. Support brackets are slidably mounted on the legs for supporting longitudinal braces extending between corresponding legs in each pair of legs. A shelf is positioned on the longitudinal braces. Additional support brackets, longitudinal braces and shelves can be positioned anywhere along the length of the legs. Leg extensions can be provided to further extend the length of the legs. The shelf unit can be extended linearly or at right angles by the use of additional legs, cross braces and support brackets. The length and spacing between shelves is adjustable and the depth is selectable.