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Front-loading Horizontal Mailboxes – 20 Doors

Product Number: 1400-54
What you need to know before you buy.

Bulk Pricing Options Available


1-4 $1,624.00

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 74 lbs
Mailbox configuration 5x4
Number of mailboxes 20
Actual Unit Size
Height 28.00"
Width 27.25"
Depth 16.50"
Mailbox Size
Height 5.00"
Width 6.38"
Depth 15.50"

20-Door Front-Loading Horizontal Mailboxes from US Mail Supply

  • 5-high x 4-wide configuration
  • Module contains a total of 20 doors – 19 usable tenant mailboxes (5” high x 6 3/8” wide x 15 ½” deep)
  • 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

20 Door Horizontal Mailboxes Suit Apartments, Condos, or Office Buildings

20 door horizontal mailboxes from U.S. Mail supply are fully customizable, supplying you with the option to increase individual mailboxes, parcel lockers, collection slots, or opening width to fit your postal needs. With your tenants visiting your mailbox almost every day, you need to make their transactions as easy as possible with a 1400 Series Horizontal module to design a flawless mail delivery system in your apartment complex.

Our 20 door front loading mailboxes give you the security, personalization, and easy access you’ll need to establish a confident flow in your postal network. It can be hard to decide what mailbox is right for you, but when considering purchasing one of our 1400 Series Horizontal mailboxes, it is important to remember they are not suitable for outdoor use under our warranty and should be exclusively installed and operated indoors, such as in a hotel lobby, military facility, or college housing setting.

Contact the horizontal mailbox professionals at US Mail Supply today to get a quote.
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.