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USPS Approved Horizontal Mailboxes

These large USPS Approved Horizontal Mailboxes are designed to be used in multi-family homes or apartment buildings. These large aluminum commercial mailboxes provide secure mail delivery with a locking 5-pin cam lock on each door.

Interested in USPS Approved Horizontal Mailboxes?

Browse our selection of USPS Approved Horizontal Mailboxes, sure to fit your specific needs. Contact our reliable customer service staff at 1-800-229-4500 with any questions you may have or to inquire about custom orders.

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  1. Rear Loading 18-Door Horizontal Mailbox
    As low as $1,440.00
    N1010986
  2. Rear Loading 21-Door Horizontal Mailbox
    As low as $1,675.00
    N1010992
  3. Rear Loading 20-Door Horizontal Mailbox
    As low as $1,600.00
    N1010998
  4. Rear Loading 24-Door Horizontal Mailbox
    As low as $1,950.00
    N1011004
  5. Rear Loading 28-Door Horizontal Mailbox
    As low as $2,250.00
    N1011010
  6. Rear Loading 25-Door Horizontal Mailbox
    As low as $2,000.00
    N1011016
  7. Rear Loading 30-Door Horizontal Mailbox
    As low as $2,400.00
    N1011022
  8. Rear Loading 35-Door Horizontal Mailbox
    As low as $2,800.00
    N1011028
  9. Engraved Doors for 1400/1500, 1450/1550 & 4C Mailboxes
    N1023880
  10. Plexiglass Window for Horizontal Mailboxes
    N1020980
  11. Additional Keys per Lock
    N1023930
  12. Box of 100 Key Blanks for Horizontal Mailboxes
    N1023881
  13. Combination Lock for Horizontal Mailboxes
    N1023955
  14. Replacement Standard Lock for Horizontal Mailbox
    N1023956
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