Number of locking points: Locker doors may lock with either single- or three-point locking, but this is not normally chosen as a separate option, and the choice is usually dependent on the number of tiers in the lockers, or whether they are a high-security model, although some manufacturers do allow purchasers to specifically choose an option here that goes against their normal practice. Single-point locking locks the door at only the point where the latch engages with the door-frame, whereas three-point locking uses extensible steel rods to lock the top and bottom of the door as well.
Used lockers are typically small storage compartments that vary in size and shape, and usually has the option of locking shut. They are useful in schools and locker rooms to anywhere where secure storage is desired. There are many different styles, including box lockers, half door, full door, and triple tear. There are also specialty lockers like garment and two person lockers with hat shelves.