A flexible shelving unit includes a support frame having at least one vertical guide rack, the guide rack including an elongated slot. The shelf unit is supported by the guide rack. The shelf unit includes a shelf plate framed by a front reinforcement portion and by at least one side reinforcement portion. The shelf unit when in a release position is moved to selected upward and downward locations by vertical displacement of at least one locating pin connected to and extending from the at least one side reinforcement portion which is positioned and sliding within the elongated slot. A flat end face of the at least one side reinforcement portion directly contacts a plate face of the at least one vertical guide rack with the at least one side reinforcement portion and the shelf plate in a horizontal position to frictionally retain the shelf unit in the horizontal position.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

A device for connecting modular metal shelving units, comprising at least two props (1) and at least one connecting element (2), for mutual coupling of the two props (1). Each prop (1) comprises central couplings (14), first distal couplings (16) and second distal couplings (17), and each of the couplings (14,16,17) comprises a central coupling (11) and a first adjustment slot (12). The connecting element (2) comprises a first grouping (21) of pins (20), which can be inserted into the first distal couplings (16) of a prop (1), and a second grouping (22) of pins (20), which can be inserted into the second distal couplings (17) of another prop (1). The first adjustment slot (12) of the first distal couplings (16) is diametrically opposed to the first adjustment slots (12) of the central couplings (14) and the second distal couplings (17).

A device for connecting modular metal shelving units, comprising at least two props (1) and at least one connecting element (2), for mutual coupling of the two props (1). Each prop (1) comprises central couplings (14), first distal couplings (16) and second distal couplings (17), and each of the couplings (14,16,17) comprises a central coupling (11) and a first adjustment slot (12). The connecting element (2) comprises a first grouping (21) of pins (20), which can be inserted into the first distal couplings (16) of a prop (1), and a second grouping (22) of pins (20), which can be inserted into the second distal couplings (17) of another prop (1). The first adjustment slot (12) of the first distal couplings (16) is diametrically opposed to the first adjustment slots (12) of the central couplings (14) and the second distal couplings (17).

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

Provided is a prefabricated shelf assembly. The prefabricated shelf assembly enables a shelf to be conveniently and rapidly assembled, enables the assembled shelf to be firmly maintained, and allows an outer wall and a door to be assembled as a user desires, thus realizing a high-quality product, and allows the length of the shelf to be adjusted via an assembly kit or allows a plurality of shelves to be optionally arranged and then be assembled depending on an installation environment, and adopts a coupling method using a fitting protrusion and a fitting hole, so that the shelf may be re-assembled by separating only a support plate even when the assembly has been completed, and thereby the height of a storage part can be easily changed.