A foldable crate includes a base having a front end and a rear end and a pair of end gates, wherein an end gate is rotatably attached to each end of the base. Each end gate includes a cap attached adjacent to one end of each post of the end gate and a knob is attached adjacent to the opposing end of each post. A skid shoe is attached to the bottom of each corner of the base, wherein each skid shoe includes a socket for receiving the knob or cap of the corresponding end gate of an adjacent foldable crate when a plurality of foldable crates are stacked.

A mini-container for inter-modal shipping includes panels forming a pair of oppositely disposed side walls, a front wall, a back wall opposite to said front wall, a floor, and a roof. The side, front and back walls may releasably lock to one another to form an enclosure and unlock from one another. The panels are positionable between an erected-for-use configuration and a collapsed storage configuration. In the storage configuration, the side, front and back panels are stacked lying flat to form a stack of the panels laying on the base. The stack of panels is overlaid with the roof. The erected mini-containers are sized for space efficient loading of an inter-modal mobile transport conveyor such as an automobile carrier, train, ship or plane. In their storage configuration the mini-containers may be carried on the mobile transport conveyors for later use carrying cargo and may be carried in a stack simultaneously with mini-containers carrying cargo. The mini-containers may be sized so as to enclose at least two standard-sized pallets or at least three standard-sized boxes positioned side-by-side and adjacent the base of the mini-container.

A foldable tray comprises a baseplate, and a first side plate and a second side plate symmetrically arranged on the baseplate, both hingedly connected to the baseplate, and lie on the baseplate after being folded, and are height-adjustable side plates. An extension side plate that can be stretched out from the side plate is arranged at the top of the first and second side plates. The stretching height of the extension side plate is controlled by a prepositioning apparatus arranged in the first and second side plates. A side plate folding lock is arranged on the first and second side plates. The tray comprises roller shutter side plates symmetrically arranged on the baseplate and rolled in roller shutter storage apparatuses located in the baseplate, and can be pulled out under the action of external force. When the external force disappears, the roller shutter side plates can automatically retract.

A foldable tray comprises a baseplate, and a first side plate and a second side plate symmetrically arranged on the baseplate, both hingedly connected to the baseplate, and lie on the baseplate after being folded, and are height-adjustable side plates. An extension side plate that can be stretched out from the side plate is arranged at the top of the first and second side plates. The stretching height of the extension side plate is controlled by a prepositioning apparatus arranged in the first and second side plates. A side plate folding lock is arranged on the first and second side plates. The tray comprises roller shutter side plates symmetrically arranged on the baseplate and rolled in roller shutter storage apparatuses located in the baseplate, and can be pulled out under the action of external force. When the external force disappears, the roller shutter side plates can automatically retract.

A foldable crate includes a base having a front end and a rear end and a pair of end gates, wherein an end gate is rotatably attached to each end of the base. Each end gate includes a cap attached adjacent to one end of each post of the end gate and a knob is attached adjacent to the opposing end of each post. A skid shoe is attached to the bottom of each corner of the base, wherein each skid shoe includes a socket for receiving the knob or cap of the corresponding end gate of an adjacent foldable crate when a plurality of foldable crates are stacked.