Confused by the difference between STD-4B and STD-4C mailbox systems? Learn which USPS standard applies to your project, what it means for compliance, and why 4C is the future-proof choice.
How to Choose Between 4B and 4C MailboxesTired of mailbox maintenance headaches? Today’s cluster mailbox units (CBUs) are built for longevity, minimal upkeep, and hassle-free performance. Learn what makes them the new standard.
Maintenance-Free Cluster MailboxesCluster box units (CBUs) are the USPS-approved standard for modern residential mail delivery—offering superior security, cost-efficiency, and curb appeal. Learn why they’re the go-to choice for developers and HOAs.
Why CBUs Are the Smarter Mailbox InvestmentFrom tamper-resistant locks to ADA accessibility, modern cluster mailboxes are built with community security in mind. Learn what to look for—and what to avoid—when choosing a mailbox system for your HOA.
Are Cluster Mailboxes Secure?An outdated mailbox system can drag down your neighborhood’s image. Decorative CBUs offer a budget-friendly upgrade that improves curb appeal and resident satisfaction.
Cluster Mailboxes and Curb Appeal