A modular shelf assembly that is adapted to interlock with adjacent modular shelf assemblies. The modular shelf assembly may include a shelf unit, a plurality of supports, and a plurality of feet. The shelf units, supports, and feet, in combination, are adapted to create the modular shelf assembly. The shelf unit may also be modular and have a shelf body that includes a cap. Each cap may have interlocking apertures that are adapted to receive interlocking components, which are used to connect multiple shelf assemblies.

Variable planform shelving systems include a variable support platform and a support surface assembly that is supported by the variable support platform. The variable support platform includes frames that can be repositioned relative to each other to vary the planform of the variable support platform. The support surface assembly provides a support surface for supported items. The support surface assembly is flexible and/or comprised of a plurality of linked panels so that the support surface provided varies in response to variation in the planform of the variable support platform.

A stackable storage rack, which includes a base with multiple sockets for connecting a respective pair of vertical support members in a manner that permits multiple storage racks to be stacked on-site with their respective vertical support members attached and in a standard shipping container without their respective vertical support members attached. The storage rack also maximizes the storage capacity in a standard shipping container when it is loaded in a standard shipping container with its vertical support members attached.

A post coupler having a top end portion and bottom end portion, a first body portion and a second body portion. Each body portion having an inner edge, an outer edge, a reverse flange, and a post stop. Each reverse flange forms a post receiving slot, and each post stop extends towards its respective body portion. The first and second body portions are coupled to each other at approximately 90 degrees. A method of using the post coupler comprises the steps of a) providing a first post section and a second post section, b) inserting the first post section along the post receiving slots until the first post section abuts one side of the post stops, and c) inserting the second post section along the post receiving slots until the second post section abuts an other side of the post stops.

The stackable shelf system for charging electrical devices is a furniture item. The stackable shelf system for charging electrical devices comprises a bracket, a plurality of shelves, and a power distribution circuit. The bracket provides vertical support for the plurality of shelves. The plurality of shelves forms a plurality of horizontal surfaces, which support and store one or more electrically powered devices. The power distribution circuit provides an ac port and a dc port to each shelf contained within the plurality of shelves. Each ac port and each dc port provide a source of electrical power for use by the one or more electrically powered devices. The power distribution circuit further comprises a daisy chain link that allows multiple instantiations of the stackable shelf system for charging electrical devices to be connected to an external power source using a single electrical connection.

A stackable storage rack, which includes a base with multiple sockets for connecting a respective pair of vertical support members in a manner that permits multiple storage racks to be stacked on-site with their respective vertical support members attached and in a standard shipping container without their respective vertical support members attached. The storage rack also maximizes the storage capacity in a standard shipping container when it is loaded in a standard shipping container with its vertical support members attached.

A butt-joining and engaging structure that allows to a pair of columns to be connected. The butt-joining and engaging structure has a seat body with a first connecting portion and a through hole, a stop part extends from an inner wall of the through hole toward the center of the through hole, a connecting member has a pair of ends defining a plug-in portion and a second connecting portion, and a position limiting part protrudes from the abutment surface of the connecting member. The first connecting portion is adapted to be affixed to one of the pair of columns. The second connecting portion is adapted to be secured to an end of the other column.

A frame hooking and connecting structure includes a column, each side of which is formed with a first through hole, and a parallel second through hole. A first support rod is provided to hook the column. The two ends of the first support rod are extended with a fastening part, and the free end of the fastening part is connected with a first hook, which is hooked and positioned to the bottom edge of the first through hole, and the fastening part is attached to a corresponding end surface of the column. A second support rod is provided to hook the column. The ends of the second support rod are respectively extended with a second hook, and the free end of the second hook penetrates through the hollow portion and the second through hole into the column, and is locked to the bottom edge of the second through hole.

A modular frame with a U-shaped hook member includes multiple upright columns each having at least two faces of each of the multiple upright columns have multiple couples of first through hole and second through hole defined therein. Multiple horizontal columns are respectively connected to a corresponding one of the at least two faces of a corresponding one of the multiple upright columns. Two connecting blocks respectively mounted into a corresponding one of two opposite ends of the tube. Two U-shaped hook members are respectively mounted into a corresponding one of the two connecting blocks. Each U-shaped hook member includes a first hook and a second hook extending therefrom and respectively engaged to a lower portion of a corresponding on of the first through holes and the second through holes.

A leg includes an outer surface, an inner surface, a first wall, a second wall, a first seam, and a second seam. The inner surface is opposite the outer surface. The first wall extends from the outer surface to the inner surface. The second wall is coupled to the first wall and extends from the outer surface to the inner surface. The first seam is formed in the inner surface. The second seam is spaced apart from the first seam and formed in the inner surface. The second seam forms a first non-parallel angle with the first seam and a second non-parallel angle with the first wall.