5 Things To Know About Cluster Mailboxes
All Blog Posts Article SummaryCluster mailboxes—also known as Cluster Box Units (CBUs)—are free‐standing, pedestal-mounted mail receptacles that serve multiple residences in one centralized location and are approved by the USPS. They offer enhanced security since each unit is individually locked and managed by a master postal key for efficient delivery. These units simplify package handling…











