Freestanding Mail Stand Enclosures with 4C Series Horizontal Mailboxes (High Security Type) Local Postal Approval Required

High-quality Commercial Mailboxes made in the USA

Wholesale PricesThe NEW Freestanding Mail Stand Enclosures with 4C Horizontal Mailbox Units from National Mailboxes allow you to install your 4C mailboxes indoors or outdoors while still being compliant with the new USPS STD-4C installation requirements. These units are perfect for your stand alone delivery and collection needs with absolutely no wall space requirements. They are USPS Approved and can be used for either U.S Mail delivery or as private use/access style commercial mailboxes for private distribution. 4C Horizontal mailboxes are designed to ensure that a maximum number of USPS compliant tenant compartments are available within the given height, and meet Fair Housing ADA installation requirements. Learn More

For more product info contact the National Mailboxes Customer Support Center at 1-800-676-5161


Product Line Features:

  • Freestanding 4C Horizontal Mailboxes include a U.S.P.S. approved 4C Horizontal Mailbox Unit and a matching Freestanding Enclosure – minor assembly required
  • Provide a convenient means of installing 4C horizontal mailboxes in locations where a wall mounted application is not desired or available
  • Ideal for apartments, commercial buildings and residential developments
  • For indoor or outdoor use
  • Constructed of heavy duty aluminum and stainless steel hardware
  • Feature a durable powder coated finish available in aluminum, bronze, gold and sandstone
  • Accessed from the front through 1 or 2 easy opening master door panels
  • Doors include a heavy duty cam lock with a dust/rain shield and 3 keys
  • U.S.P.S. standard 4C requires a minimum of 1 parcel locker for every 10 tenant compartments
  • Available in configurations that are 1 door wide (single column) and 2 doors wide (double column)
  • Parcel lockers must be a minimum of 15″ H to meet the 1:10 ratio. Once this ratio has been met, additional smaller parcel lockers may also be added.
  • Includes a compartment for outgoing mail collection and is labeled “Outgoing Mail”
  • Outgoing mail compartment / carrier access door includes the U.S.P.S. master lock access door (lock installed by the U.S.P.S.) and cannot be used for mail distribution
  • Outgoing mail compartment includes a weather protection hood

Colors: Aluminum, Black, Bronze, and Sandstone (Freestanding Mail Stand Enclosure and 4C Horizontal Mailbox Unit must be the same color)

4C Mailbox FAQs: