Cluster Box Units

The USPS approved Cluster Box Units (CBU) are used for centralized delivery of mail and parcel delivery. These secure, attractive freestanding outdoorm cluster mailboxes are constructed of stainless steel, durable aluminum, and corrosion-resistant components.  Cluster Mailboxes are approved for use throughout the U.S. in all weather conditions, making it the primary external delivery system for the USPS. Our cluster box units are designed to provide safe personal mail delivery and offer the most extensive design to guarantee ease of use and protection against vandalism. These outdoor security mailboxes also provide outstanding protection against the elements. Cluster Mailbox Accessories are also available including replacement locks and pedestals. Click on the corresponding link below to purchase the pedestal you need. Browse our extensive selection of locking Cluster Mailboxes, sure to fit your specific needs. Contact our reliable customer service staff at 1-800-229-4500 with any questions you may have or to inquire about custom orders.