The 1600 series horizontal mailboxes were designedfor use in large private installations not serviced by the USPS such as military bases, colleges, and office buildings.
The compartment size, which is smaller than USPS regulations, is convenient when wall space is limited since more mailboxes fit in each module. These 31-door private distribution 1600 mailboxes do meet all other regulations.
Each tenant door measures 4"W x 5"H with a 5-pin cam lock, two keys, and a clear plastic number slot for tenant identification. Please note that one door must be used as a master door and not a tenant door; it can be used as an outgoing mail slot or dropbox upon request.