Lyon storage lockers have a padlockable hasp as an integral part of the handle. Legs add 6” to height. Single and Double Tier Steel Lockers accept either padlocks or built-in locks (sold separately). Single Tier Steel Lockers are the most practical and widely used of all storage lockers. 12”D & 15”D School Lockers have a center ceiling double prong hook. 18”D & 21”D Single Tier Lockers include coat rods for hanging clothing. Double and Triple Tier Office Lockers are great for short-term use and storage of shorter length garments. These metal lockers include one double-prong and three single-prong coat hooks. Four, Five, or Six Tier Lockers are used for the storage of high density or individual belongings and supplies. Lyon recommends anchoring steel lockers to floor and/or wall for safety. Optional Number Plates can be added to all lockers for quick identification. Assembled storage lockers are non-returnable. Lyon storage lockers are available in Gray or Putty. Limited Warranty.
Bicycle lockers are usually in outdoor locations near railway stations and the like where people may want to store bicycles securely. They are often banked together, with individual lockers shaped like an isosceles triangle for efficient and compact storage of a bicycle. This triangular shape permits the lockers to be grouped either in a radial pattern (with the sharpest points of the lockers together), or in a row in alternating orientations.
Perforated lockers are similar to the standard types of locker, but the door and walls are made largely or entirely of perforated steel, with hundreds of holes creating a strong mesh arranged in a diagonal pattern. This is used where good ventilation is required, or where, for security reasons, it is necessary that the contents can be examined visually while the doors are locked.
Tiers: may be specified as single-tier (full height), two-tier, three-tier, etc., meaning that the lockers are stacked on top of each other in layers two high, three high, etc. Tiers are commonly up to eight high; on occasion, even more tiers may be found, in the case of very small lockers for such purposes as storing laptop computers. The most common numbers of tiers found in lockers are, in order, one, two, and four; three-tier lockers are rather less common, and other numbers such as five, six, or eight even less common still - seven almost non-existent. Since locker cabinets are most commonly 6 feet (182.9 cm.) high (although there are exceptions), the height of individual lockers varies according to how many tiers are accommodated within the cabinet. The height of individual lockers is usually approximately 6 feet (182.9 cm.) divided by the number of tiers, so that two-tier lockers are about 3 feet (91.4 cm.) high, three-tier lockers 2 feet (61 cm.) high, four-tier lockers 1.5 feet (45.7 cm.) high, and so on. Standard features often vary according to the number of tiers: single-tier lockers usually include a shelf about a foot (roughly 30 cm.) from the top, and a hanging rail (sometimes with one or two hooks) immediately underneath that, at the top of the large compartment beneath the shelf; two- or three-tier lockers usually lack the shelf, but include the hanging rail; lockers with four or more tiers usually have none of these fittings, but consist of just the bare compartment.
Vanguard lockers feature right-hand butt hinges recessed into the doorframe to prevent tampering and forced entry. Office lockers include tamper-proof chrome plated latching handles that provide smooth fingertip operation. Locker doors feature mortis and tenon construction with spot welding for rigidity. Continuous door strikes ensure secure closure; strikes are padded to dampen noise. Latching channels have nylon glides to reduce sound when opening or closing. Legs add 6" to height. Single Tier Storage Lockers have 3-point latching (top, bottom and sides); 18”D Lockers include coat hooks and coat rod. Double Tier and Triple Tier Employee Lockers have 2-point latching (top and bottom). Includes coat rod. Six Tier Box Lockers have friction latch and hasp (padlocks sold separately). 16 Person Lockers include sixteen 12”W x 18”D x 12”H compartments and a center coat rod. Recommended to anchor steel lockers to floor and/or wall for safety. Powder coat finish available in the following colors: Gray, Champagne, Marine Blue, or Burgundy.
I must stay, I was a little reluctant on buying this product because of the lack of reviews, but I am not disappointed at all. This product is EXCELLENT. I was a little overwhelmed with the installation process at first, but after emailing back and forth with the seller they were able to send me step by step video instructions. It was super easy to install and looks great. The individual keys are very well made. Highly recommend it 

Gym Locker