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All 13-Door High Suite (47 3/4"H) - (3 to 16 USPS Approved Mailboxes)

13-Door High Suite (47 3/4"H) Compartment - (3 to 16 USPS Approved Mailboxes)

4C mailboxes have thick, reinforced collect doors for theft prevention and interlocking, overlapping seams for prying prevention. There are several neutral color options to choose from to match the aesthetic of your building. All high suite doors meet the USPS regulations for delivery.

4C Horizontal, 13-Door High USPS Approved Lockable Mailboxes

  • USPS APPROVED!
  • These 4C Horizontal mailboxes are constructed of heavy gauge aluminum and 300 series stainless steel compartments for superior strength, corrosion resistance, and exceptional outdoor durability. Rugged weatherproof pebble (textured) powder-coat finish resists scratching and vandalism.
  • Installation options for these versatile™ 4C mailboxes are fully recess mounted into a wall or similar type of structure (17-inches of wall depth is required), or surface mounted with the purchase of an additional surface mount collar required (see below for the appropriate collar for the module being ordered). Surface-mounted units will protrude approximately 18-inches from the wall.
  • Our 4C Horizontal mailboxes feature quick-release master loading door lock latches for easy access by USPS Mail Carriers into the front-loading units. All mailbox modules include an integrated solid aluminum mail collection compartment for outgoing mail, with a weather protection hood that provides maximum weather resistance and an anti-fishing comb that protects against theft.
  • Our 4C horizontal mailboxes are only available in front-loading (mail carrier accesses from the front).
  • 4C horizontal mailbox door identification is available in two ways: Number decals – up to 5 characters, or engraved door ID - up to 12 characters. See examples of the available door ID options.
  • Standard tenant mailbox size is approximately 3 1/4"H x 12 7/8"W x 15 1/2"D. Selected units are also available with oversized mailboxes and/or oversized outgoing mail compartments. Custom mailbox units are available with modified compartment sizes, including double-high (6 ½” high), triple-high (10” high), and quad-high (13 ½” high), depending on the 4C mailbox module being ordered. Some modification restrictions do apply, so please call our highly trained and helpful Customer Service staff for assistance if you require something other than what is shown below.
  • Double locking mechanism for added package security on all Parcel Locker doors
  • 4C horizontal mailboxes are equipped with USPS-1172 910A tenant locks with 3 keys each.
  • Add a built-in trash/recycling bin to your 4C Horizontal mailbox configuration!! These accessories to your mailboxes are designed to match the versatile™ 4C mailboxes in this suite and can be installed side-by-side with them. As with the mailboxes, these bins may be recess mounted or surface mounted with the additional surface mount collar. Choose from a variety of door flap identification to suit your needs, such as “WASTE”, “PAPER”, “PLASTIC”, “GLASS”, “TRASH”, or customize your own.
  • The versatile™ 4C horizontal mailboxes are available in several powder-coat finishes - choose from Postal Gray, Silver Speck, Gold Speck, Black, Dark Bronze, White, Sandstone, and Antique Copper. View the color chart here.
  • View/print/download the installation instructions for the RECESS mounted versatile™ 4C mailboxes
  • View/print/download the installation instructions for the SURFACE mounted versatile™ 4C mailboxes
  • Don’t see what you’re looking for? Or do you have a large or complicated mailbox project? Please call our helpful Customer Service staff for assistance!

Made of heavy gauge aluminum and corrosion-resistant steel, these 4C mailboxes are ideal for outdoor or indoor use. They're not only durable, but they're also secure. Apartment, university, and military tenants have found this 13-door high 4C horizontal mailbox does a great job of keeping mail safe and secure.

All versatile™ 4C horizontal mailboxes comply with USPS postal regulations. This means all slots, protective flaps, and the mailbox dimensions all conform to USPS regulations.

Customizable Features

With an abundance of customizable features like color and configurations, these mailboxes are adaptable to just about any building. We suggest starting by choosing the type of mount you prefer, then choose a color and size. There are plenty of images and installation guidelines on our site to help with your decision. If you still need assistance, though, please contact customer service.

Contact the 14 Door 4C Horizontal Mailbox professionals at U.S. Mail Supply or call us at 262.782.6510 for more information.
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.