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All 6-High Horizontal Depot Mailboxes

Shop 6-High Horizontal Depot Mailboxes

4C horizontal depot mailboxes are freestanding units designed at a standard accessible height. They are also a popular choice since they are much easier to install compared to recessed mailboxes. Most units include a parcel locker for USPS package delivery. They work well for mail delivery to multifamily buildings and office spaces.


6-High 4C Horizontal Indoor Mailboxes from US Mail Supply6-High 4C Horizontal Depot Mailboxes

  • These mailboxes are NOT USPS Approved. They will require permission from your Local Postmaster prior to purchase!
  • Available in 8 powder coat finishes: Antique Bronze, Black, Dark Bronze, Gold Speck,  Sandstone, Silver Speck, White, Postal Gray.

Buy 4C Mailbox Units for Your Apartment Complex

These mailboxes are perfect for either a residential or commercial setting. Featuring thick, reinforced collection doors, overlapping seams, and an exclusive double-latching lock for extra strength, these mailboxes are made to keep mail and packages safe from thieves, critters, and severe weather patterns.

On top of being functional, these depot mailboxes are stylish. Coming in eight durable powder coat finishes, these are sure to be an elegant complement to any décor. 

Learn about USPS Approval requirements

All new constructions are required to have USPS compliant mailboxes. We provide information on what the standards and specifications are, so you know what comes next after purchasing your new 4C mailbox from US Mail Supply.

Check out our extensive list of 4C Wall Mounted Horizontal Mailboxes.

Contact us today to get a quote on horizontal depot mailboxes from US Mail Supply.

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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.