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Shop Locking Commercial Mailboxes

U.S. Mail Supply offers locking commercial mailboxes in different configurations to meet any client’s needs. Ensure maximum security for your tenant’s mail with our cluster or letter-locking mailboxes. All locking mailboxes are USPS approved.

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USPS Mailboxes

Subject to local regulations and installation requirements, our products can comply with USPS standards, as defined by the Postmaster General.

Please note that the USPS periodically updates mailbox standards and guidelines. Before proceeding with mailbox projects, we recommend you consult with your local Postmaster to comply with your specific area guidelines. US Mail Supply experts are standing by to help you navigate the product selection and installation process.