Lockers may be varied in terms of their features. A locker’s bank size refers to the total number of compartments it has, while its tier refers to how many compartments high it is. Lockers are also varied through the material they are made depending on where and how they will be used. Gym Lockers are usually made of metal for durability. On the other hand, lockers that will be used outside where they are exposed to moisture are usually made of plastic or laminate.  Lockers can indeed save space and make a neat, uncluttered feel to any space or room.