Lift locks, also known as lift locks or vertical locks, are locks designed to be used on doors that slide up and down instead of swinging open. This type of door is common in stores, warehouses, and other commercial buildings. Lift locks work by securing the door in the closed position, so it cannot be lifted open. They are usually mounted at the top or bottom of the door and can be operated with a key or combination. Lift locks are a popular choice for commercial buildings because they provide a high level of security and can be easily opened in an emergency.