Product Description Salisbury 2200 Series Aluminum Mailboxes - Rack Ladder Drop Boxes - Private Access are ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications. Available in 1 door (22" W x 11-1/2" H) or 2 door (10-3/4" x 11-1/2 H) configurations. Compartments are constructed of 20 gauge steel. Doors are made of 1/4" thick extruded aluminum. Doors feature a powder coated aluminum finish. Salisbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936. From the Manufacturer Salsbury 2200 Series Aluminum Mailboxes - Rack Ladder Drop Boxes - Private Access are ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications. Available in 1 door (22" W x 11-1/2" H) or 2 door (10-3/4" x 11-1/2 H) configurations. Compartments are constructed of 20 gauge steel. Doors are made of 1/4" thick extruded aluminum. Doors feature a powder coated aluminum finish. Salsbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936.