Abstract: A wall mounted storage system includes at least one pair of spaced apart vertical hanger bars for attachment to a studded wall or comparable structure. At least one removable shelf support bracket is associated with each hanger bar, and the bracket is removably connected to the bar at any one of a plurality of vertical locations along the bar. A shelf is supported by the brackets and releasably attached thereto by rear hooks on the brackets that hook over the rear rail of the shelf. An upwardly extending retainer loop on each bracket extends through the shelf and engages the front rail thereof. The hooks and loops on the shelf brackets interact with the shelf to positively secure the shelf in place and prevent it from tipping or shifting forward or sideways. Horizontal spacing of the hanger bars is not critical and the shelf may be releasably secured to the brackets even when the horizontal distance between the bars varies from one location to another.

Abstract: An overhead track high density storage system is formed by connecting an overhead track to the top posts of stationary storage units, thereby holding the track above a horizontal support surface, such as the floor. Movable storage units, such as shelves mounted on casters, are positioned between the stationary storage units. Guide roller means attached to the top of the movable storage units are received within the track so that translational movement of the movable storage unit is confined to a path defined by the track. The guide roller means include a center guide roller and at least one side guide roller mounted for rotational movement to a guide roller support channel. Each caster is locked into a directional position to prevent swiveling with a single caster alignment clip, which includes upstanding fingers defining a slot therebetween. The slot of the clip engages a portion of the movable storage unit, such as a support rod in a truss of a wire shelf that forms a part of the movable storage unit.