The front-loading 1600 series horizontal mailboxes are ideal for use in large, private installations not serviced by the USPS such as universities, military bases, and office buildings.
The smaller compartment size does not meet USPS regulations, but since more mailboxes can fit into each module, it is very convenient when working with limited wall space. These 41-door private distribution locking mailbox systems do meet all other USPS regulations.
Tenant compartments measure 4" x 5" and feature a 5-pin cam lock, two keys, and a plastic number slot for tenant identification. Please note that one door will be used as a master door and therefore cannot be used as a tenant door. This door can, however, be used as an outgoing mail slot or office dropbox upon request.