Abstract: A structual support-or joist-suspendable storage case. An open-top box unit is suspended for pivotal motion and fixation between rafters, joists, etc. The suspension and movement mechanism includes hooks and, optionally, detents (or studs). In the preferred embodiment, only identical hooks are used in braces or pair-assemblies, one of each pair mounted to a side of the box unit, and its complement fixed to a structural element in a position best suited to receive the box-mounted device. Two or more of the assemblies are featured per unit. Alternatively, the assemblies may consist of a hook and studded hook combination where either hook or studded hook is placed on the box and its complement is fixed to a structural element.