Aluminum Private Mailboxes: 2900 Series
Rack Ladder Installation, Rear Loading
Installation
Rack Ladder and Standard Systems:
Aluminum mailboxes designed and engineered by the U.S. Postal Service. They
are available in a rack ladder or standard installation system. With
either system, each mailbox unit has 1/4" extruded aluminum doors with a lock
and two keys per opening. The mailbox compartments have open backs and are
constructed of all aluminum.
Rack Ladder System:
Rack ladder system mailbox units are designed to be installed between rack
ladders. The rack ladder support five mailbox units to form a column of mailboxes.
The first column of mailbox units requires two rack ladders and each additional
column in the same configuration require another rack ladder. These units
have the same outside dimensions regardless of individual door sizes.
