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Shop Vital™ F-Series Cluster Box Units (CBUs) Mailboxes

Cluster mailboxes (CBUs) from US Mail Supply are USPS-approved and include a host of security features. Compartments are reinforced, have weather-resistant exteriors, and can accommodate larger parcels than the previous NDCBU’s. Please note, that your local post office must be consulted before installation due to specific placement rules.

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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.