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Front-loading Horizontal Mailboxes – 24 Doors

Product Number: 1400-64
What you need to know before you buy.

Bulk Pricing Options Available


1-4 $1,953.00

5+ Call for price

Before You Buy:

  • Only USPS Approved for replacement purposes (replacing existing Horizontal mailboxes in same wall opening)
  • It is strongly recommended that you consult with local Postal Officials prior to ordering – Local Postmaster Approval is required
  • Approved and warranted for Indoor Use only
  • Also available for Private Mail Delivery (non-USPS)
  • Recess mounted only – 17” of wall depth is required
  • Cannot be surface mounted on a wall, pedestal mounted or free-standing








Additional Resources:

Standard configuration details & dimensions
Weight 84 lbs
Mailbox configuration 6x4
Number of mailboxes 23
Actual Unit Size
Height 33.38"
Width 27.75"
Depth 16.50"

Front-Loading Horizontal Mailboxes from US Mail Supply

  • 6-high x 4-wide configuration
  • The module contains a total of 24 doors – 23 usable tenant mailboxes (5” high x 6 3/8” wide x 15 ½” deep)
  • The unit comes standard with 5-pin cam keyed mailbox locks.
  • NOTE: Any customization of this unit, including optional color, non-standard lock and/or custom configuration will require an upcharge – Call for details
  • View or download a shop drawing of this product – Please call for a shop drawing of multiple-unit side-by-side configurations

24 Door Front-Loading Mailbox Unit for Condos, Apartments, and Commercial Buildings

For more than 8 decades, US Mail Supply has been the superior provider of mailbox delivery systems designed for multi-family apartment buildings, dormitories, office buildings, and company mailrooms. This 1400 Series unit is made with standard heavy-duty aluminum and comes fully integrated to solve any mailing problems. Our mailbox customizing options give us the ability to produce exactly what you need, whether it be for aesthetic or security purposes.

What kind of lock system you will provide to your tenants depends on whether you select private or USPS approved delivery. If you select the USPS route, you will be given a total of three keys with additional keys for every mailbox you order - always available for replacement. 

If you’re interested in our 24-door mailboxes or want more information on our customization and security options, contact mailbox distributors at U.S. Mail Supply today!
Make sure to choose the RIGHT mailbox.

Don't worry, we can help you figure out what's best and most cost efficient for your space. A representative at U.S. Mail Supply will help you figure out what is required for USPS or private delivery, the number of units you need and any information required for installation.