A pallet jack, also known as a pallet truck, pump truck, or jigger is a tool used to lift and move pallets.

The front wheels are mounted inside the end of the forks, and as the hydraulic jack is raised, the forks are separated vertically from the front wheels, forcing the load upward until it clears the floor. The pallet is only lifted enough to clear the floor for subsequent travel.

Pallet jacks are used for leveling or positioning heavy equipment, or for supporting structures. They function by means of a screw or cylinder-based actuator, powered via hydraulic, mechanical, electric or manual (hand or foot) means. Pallets are available in various sizes and materials to serve many applications.

Common pallet sizes range anywhere from 20 in. x 28 in. up to 4 in. x 72 in. Plastic pallets are platforms used for storage and transportation of goods. Plastic pallets are available in various sizes, materials, and from various manufacturing processes.