A shelving apparatus for use with a rigid frame member wherein the apparatus includes at least one shelf member having a longitudinal axis and an end surface coincident therewith, first and second coupler pairs mounted to the shelf member and frame member, respectively, the second pair delineating a clearance region within a coupling plain, the couplers including first and second pins and first and second slot delineators which are operative to support the shelf in any of several different postiions including at least one essentially horizontal position and which are configured and juxtaposed such that the shelf member can easily be dismounted from the frame member so that the first and second couplers pass into the clearance region.