The majority of lockers are sold wholesale by distributors. Used lockers are also sold. In most cases, a locker cabinet consisting of a certain number of units of a certain size is put together.
Individual cabinets and lockers are, however, also sold. It is still true that they are mostly sold in some numbers. Schools, for example, need to cater to large numbers of kids. Boys and girls lockers are generally separate. Most are metal, especially steel. Cheap plastic ones are sometimes used by residential customers, for example to allow kids to keep toys out of the reach of their siblings. Wood lockers, on the other hand, are often used by country clubs and offices to give an air of prestige.
Buildings such as schools, gyms and some offices are often designed with locker rooms. In some cases, they may be built into the wall. Small lockers are often designed to hold valuables. Some have keys, but most are locked with combinations, either as padlocks or built in to the cabinet itself. Sports stadiums generally have a locker room for each team. Soccer, football, and hockey players all use them to store equipment and clothing.
Large lockers, with shelf systems, are used for storage. They are sometimes used to contain dangerous materials. A storage building may contain a large number of these large units. Distributors are likely to sell all kinds of lockers. However, most sales fall into the range of the school and sport locker. Some companies may also sell decorations such as stickers and wallpaper, but these are also sold separately by specialists.
Lockers last a very long time, and distributors often deal in second hand ones. However, there continues to be a demand, especially when run down schools or stadiums are rebuilt.