Provided is an angle bar for shelf assembly, the angle bar including a vertical frame in which a plurality of fastening grooves is formed and a horizontal frame on which a fastening protrusion is formed, wherein the plurality of fastening grooves, each including upper and lower grooves, are formed, the lower groove has a narrower width than the upper groove, and is connected to the upper groove with an inclination portion in between, wherein the fastening protrusion includes a convex portion having an inclination surface and first and second wing portions that are formed on lateral surfaces, respectively, of the convex portion, and wherein a distance between respective end portions of the first and second wing portions is smaller than a width of the upper groove and is larger than a width of the lower groove, and the convex portion has a wider width than the lower groove.

A cabinet assembly including a first frame having a first open channel, a second frame spaced from the first frame with the second frame having a second open channel, and a plurality of beams extending between the first and second frames and interlocking to each of the first and second frames. Each of the beams include a bottom side, a top side opposite the bottom side, and a pair of opposing recessed portions extending from the top and bottom sides. Each of the recessed portions has an upper surface and a lower surface with the upper surface being disposed below the top side. A portion of the bottom side and the entire recessed portion is disposed within the first open channel. The top side is disposed outside the first open channel to interlock the beam to the first and second frames.

Disclosed is a utility rack system that includes shelves having a first end, a second end, and a pair of end supports. Each of the pair of end supports is configured to support either the first end or the second end of the one or more elongated shelves. Each of the pair of end supports includes a first vertical member and a second vertical member, an upper cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member, and a lower cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member. The utility rack system also includes a diagonal support having a sliding lock mechanism coupling a first end of the diagonal support to the first vertical member.

A pair of connectable box carcass framework members for the fabrication of non-panel constructed furniture carcasses. They simplify the construction of a furniture carcass with a minimal of tools and skill required to produce a dimensionally square, precisely sized, box that accepts an abundance of aesthetic and functional options. They are based on a pair of mechanical fastener connectable vertical and horizontal members that have connectable zipper channels, linear rabbets for the retention of side panels, screw busses, and open channels with series of spaced orifices therein for the passage of mechanical connectors.

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.

The technology described herein includes a four-column shelving unit. One or more improved tie bars run between the front and rear shelf-support beams. The one or more tie bars are installed perpendicular to the shelf-support beams. The improved tie bar may take the overall form of a V-channel with a novel tri-notch connection on either end. The tri-notch connection allows the tie bar to connect with a front shelf-support beam on one end and a back shelf-support beam on the other end. The tri-notch connection includes two bottom notches and a top notch. The top notch may form a gap in the V-channel that allows the end of the tie bar to slip under a shelf-support flange on a shelf-support beam during installation. The two bottom notches are sized and shaped to receive an upward facing retention flange located on the bottom flange of the shelf-support beam.

A rack assembly has two support frames and at least one shelf that are secured to the support frames by connecting assemblies. Each connecting assembly comprises a well secured to a medial surface of each vertical tube of the support frame, and a hook that extends from each end of each shelf, with each hook having an opening extending therethrough. The connecting assembly also includes a connector that is seated inside each well, each connector having a top plate that has an elongated opening, the connector also having a body that is sized and configured to fit inside a well, the body defining two wings with a space between the wings, and wherein each wing has a bump positioned in the center of the inner surface of each wing that faces the space. Each hook is inserted through the elongated opening of a corresponding connector with the bump on each wing fitted inside the opening of the hook to retain the hook inside the body of the connector.

A pallet racking system is disclosed, comprising a plurality of pallet shelves connected to a plurality of columns and a plurality of suspension hanging systems coupled to the plurality of columns. Each suspension hanging system is coupled to and configured for supporting a storage unit therebelow. The suspension hanging systems are slidable relative to the plurality of pallet shelves such that the sliding movement of a suspension hanging system relative to an adjacent suspension hanging system defines an aisle space therebetween.

A structural connector for assembling a plurality of structural members includes a main shank, a first bolt extending though the main shank, a first plug threadedly engaging a first blot shaft of the first bolt, a second bolt extending through the main shank and the first bolt shaft, and a second plug threadedly engaging a second bolt shaft of the second bolt. Each of two shank ends of the main shank, a first bolt head of the first bolt, a first plug head of the first plug, a second bolt head of the second bolt, and a second plug head of the second plug is configured to threadedly engage a structural connecting end of each of the structural members.

A shelf includes a main body with a plurality of support features formed therein. In one embodiment, each of the support features formed in the main body may include a board having an overmolded exterior. The board may have a plurality of apertures formed therethrough. The overmolded exterior extends through the apertures formed in the board. In another embodiment, each of the support features includes a removable board in an elongate recess that is secured in place by a cover. The boards may be wooden and add a desired strength and rigidity to the main body.