A locker is a small compartment that is used to store things such as cloths, coats, etc. it has a general specification as :
Tiers: lockers may be specified as single-tier (full height), two-tier, three-tier, etc.
Material: steel is the used material.
Locking options: various types of key locking or padlocking facility are available now.
Steel thickness: lockers tend to be made from a standard thickness of steel, which is commonly 0.8 mm.
Sloping tops: while most lockers have flat tops.