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.