how wide is the usps dropbox mailbox opening

In order to avoid delays and prevent problems, the USPS regulates the types and styles of mailboxes allowed for residential and commercial use. Shop our selection or reach out to our product experts.

If you need to purchase, we sell new USPS approved mailboxes for new buildings or locations that are renovating. If you have an existing commercial mailbox that meets USPS specifications, call your local postmaster for approval.

If you have any questions about whether a mailbox will meet postal requirements, we recommend you discuss the installation with your local post office prior to purchase.Īs of October 5, 2006, all new construction and renovation designs require USPS STD-4C compliant mailbox systems, such as Cluster Mailboxes or Recessed 4C Mailboxes. Mail Drops are also approved provided they are installed in a location the mailman can easily access. Likewise, Mail Boss products are approved for commercial or residential delivery. These boxes can be used either for residential or commercial applications. In addition to these types of units, the DVault brand curbside locking mailboxes are also Approved for curbside mail delivery. The following mailboxes are considered USPS approved for Renovation or Replacement Use: The following mailboxes are considered USPS approved for New Construction: Postal Carrier to install their arrow lock for the master door (this allows the postal carrier to deliver mail to all individual units within the mailbox cluster). An approved Cluster or 4C Horizontal unit will be prepped for the U.S. What is a USPS Approved Mailbox?Ī USPS Approved mailbox refers to any commercial or residential mailbox that is pre-approved by the Post Office prior to proper installation. For any mailbox project that will require USPS mail delivery, we recommend you consult your local Postmaster prior to ordering.Īll new construction and renovation designs require USPS STD-4C compliant mailbox systems, such as standard CBUs and 4C Horizontal units. Please consult your local postmaster for approval.Įxample: The 4B compliant 1400 Series 4B Horizontal mailboxes and Vertical mailboxes are only USPS Approved for replacement applications. Please Note: Not all mailboxes are USPS Approved for all applications.

How wide is the usps dropbox mailbox opening