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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. |
