A collapsible and extendable storage rack is provided. The rack includes a first end support, a second end support, a top shelf hingedly attached to the first end support and selectively connectable to the second end support, a bottom shelf hingedly attached to the second end support and selectively connectable to the first end support, and a middle shelf. The middle shelf includes a first portion and a second portion hingedly connected to the first portion. The first portion is hingedly connected to the first end support. The second portion is hingedly connected to the second end support. The rack is movable between a collapsed position and an extended position.

A connection piece of columns of a goods rack, where the connection piece includes a connection body, the connection body has a bending structure matching the column, and anti-misplacement horizontal support plates facing toward a bending inner side and protruding along a direction perpendicular to the connection body are in a middle part of the connection body. A first column connection hole is at a lower part and an upper part of two bending sides of the connection body respectively. A second column connection hole matching the corresponding first column connection hole is on two bending sides of the column respectively. After both ends of the connection body are cooperated with two columns, ends of the two columns are respectively abutted against corresponding end faces of the corresponding anti-misplacement horizontal support plates. An expansion buckle is in the matching first column connection hole and second column connection hole.

A connection piece of columns of a goods rack, where the connection piece includes a connection body, the connection body has a bending structure matching the column, and anti-misplacement horizontal support plates facing toward a bending inner side and protruding along a direction perpendicular to the connection body are in a middle part of the connection body. A first column connection hole is at a lower part and an upper part of two bending sides of the connection body respectively. A second column connection hole matching the corresponding first column connection hole is on two bending sides of the column respectively. After both ends of the connection body are cooperated with two columns, ends of the two columns are respectively abutted against corresponding end faces of the corresponding anti-misplacement horizontal support plates. An expansion buckle is in the matching first column connection hole and second column connection hole.

A backstop bracket which can be removably secured to a support member of a pallet rack limits the distance a load can travel along the pallet rack. When installed on the support member of the pallet rack, the bracket allows for uniform pallet placement on the pallet rack and maintains a predetermined distance between the load on the pallet rack and an adjacent structure, for example, another pallet rack, a wall or a column, to define a vertical flue space for air circulation and fire prevention purposes. The bracket is preferably formed of steel or other suitable metal or, in the alternative, can comprise an elastomeric material including a high impact plastic.

A rollout cantilever arm for a modular cantilever rack system comprising a fixed horizontal member comprising two oppositely-facing fixed parallel load bearing surfaces, a roller mechanism and one or more interconnecting elements; and a mobile horizontal member partially encased in the fixed horizontal member. The fixed horizontal member comprises a roller-end engaged between the two load bearing surfaces and a load bearing surface supported by the roller mechanism. The interconnecting elements of the fixed horizontal member are configured for interconnecting two supporting vertical members of the modular cantilever rack system. The load-bearing surfaces extend perpendicularly between the two vertical members and the roller mechanism being located at an end distant from the two vertical members.

A gondola shelving unit including a first upright having a first central channel and a first front tube rigidly secured to the first central channel, the first front tube including first angled slots. The gondola shelving unit also includes a second upright having a second central channel and a second front tube rigidly secured to the second central channel, the second front tube including second angled slots. The gondola shelving unit further includes a sway brace including first teeth disposed on a first side of the sway brace and second teeth disposed on a second side of the sway brace, opposite the first side, the sway brace removably coupling the first and second uprights when the first teeth engage the first angled slots and the second teeth engage the second angled slots. The gondola shelving unit can support weight when the sway brace removably couples the first and second uprights.

A storage shelf has a storage board with a storage frame. The storage frame has a plurality of ring sockets, a frame member and a steel plate. The frame member has a plurality of frame member units configured for assembly into a rectangular shape. Each frame member unit further has an edge wing lower than a top surface of the frame member unit. Each frame member unit further has a plurality of rib grooves. A plurality of combining pieces are attached and welded on inner surfaces of the frame member units to combined the plurality of frame member units. The frame member further has a plurality of ring grooves for engaging with the ring sockets, and each frame member unit further has a bottom surface. The steel plate is capable of being welded onto the edge wings or a top of the frame member to complete the storage frame.

Constituted from aluminum profiles object of the present invention is constituted from a set of extruded aluminum profiles, more or less long and rectangular, which make up the walls, the base and the ceiling, forming in itself the structure of the furniture, and that present at their ends double terminations in the form of a hitch that allow linking and fixing each other varying the dimension of the bottom of the furniture. They also include a slot to house a silicone rubber, tubular reinforcements to improve grip by screws, a space to fix metal plates that will make the bottom, and an increase in interior thickness at certain points to improve grip by fixing screws for hinges, shelf supports, or any other accessory.