A forklift’s maximum height will depend on the type of forklift and type of mast. A standard forklift can reach heights of 10 to 15 feet. Reach trucks with open compartments for better visibility can access indoor storage spaces up to about 40 feet high. Other forklifts that can be used in warehouses include pallet jacks (also known as pump trucks), which are designed for lifting small loads in tight spaces; and standup models such as walkie stackers and order pickers.