An Inside Look at CBU Cluster Box Mailbox Units

November 21, 2011 4:09 pm by

Florence 12 Door CBU MailboxAt the turn of the century, the United States Postal Service (USPS) authorized the use of a tenant mailbox solution that allows for postal carriers to quickly deliver mail to several mailboxes in one stop.  And at the same time, this neighborhood cluster box mailbox solution would ensure that each tenant’s privacy and security are uncompromised. The solution: Cluster Box Mailboxes.

The exterior of the cluster box units, also known as CBU Mailboxes, features:

  • Eight, twelve, thirteen, or sixteen tenant compartments
  • An outgoing cluster box mail slot
  • And at least one parcel locker compartment for packages that do not fit in the tenant’s mailbox.

All of this is readily identifiable and easy to comprehend.  But how does the CBU mailbox function? How does it secure tenant privacy and decrease mail carrier delivery time?

If you’ve never seen the inside of cluster box unit mailboxes, this article will serve as an excellent primer on how these ingenious commercial mailboxes function.  To discover the way CBU mailboxes function, consider the daily routine of its two primary users:  the postal carrier and the tenant.

CBU Mailboxes and Postal Carriers – The postal carrier approaches a cluster mailbox unit with a special key in his or her hand. One turn of the key into the CBU mailbox’s high security lock and the front panels of the entire unit open like French doors allowing the postal carrier access to all the tenant mailbox units at once.  Quickly, the postal carrier places each tenant’s mail into his or her mail slot.

If a tenant receives a package that is too large for their mailbox, the postal carrier places the package into the special parcel locker compartment and places a special key to that parcel locker in the tenant’s mail slot along with their regular sized envelopes.  Then the postal carrier closes the CBU mailbox doors and locks the cluster mailbox unit back into place.

CBU Mailboxes and Tenants – When a tenant walks up to retrieve their mail, they simply utilize their tenant mail slot key to open their particular tenant mailbox, retrieve their mail, and lock their mail slot for the next mail delivery.  If the tenant notices that the mail carrier has left a key in their mail slot, they utilize the key to open the parcel locker and retrieve whatever package has been delivered to them.

Florence 16 Door Traditional Bronze CBUThe tenant does not need to consider returning or removing the key from the parcel locker as once the parcel locker has been opened, the special key remains “stuck” in the key slot for the postal carrier to remove the next time it is required.  So, while any tenant can utilize the parcel locker key to retrieve their packages, only the postal carrier has the ability to remove the parcel locker key once it has been utilized. Read our blog article on how Adding Parcel Lockers Improve Tenant Retention.

CBU Mailboxes Finish – Cluster box unit mailboxes are available in three different finishes:  black, postal grey, and the standard sandstone, which ships in as little as 2 to 3 days.

CBU Mailbox Keys – Three keys come standard for each cluster box unit door, allowing the property manager to retain a master key for future duplication while allowing each tenant to have two keys for their mail slot.

CBU Mailbox Numbering – Tenant cluster box unit doors can be identified with standard silver placards or engraved numerals. Instead of decals, door numbers can also be custom engraved.  To ensure tenant security, The MailboxWorks (the nation’s leading supplier of CBU mailboxes) strongly suggests that tenant mail slots do not correspond to tenant office or apartment numbers.  This precaution helps keep thieves from identifying which tenant may or may not be in their unit.

CBU Mailbox Security – Extra high security options are also available for CBU mailboxes. This high security option offers the most advanced security features such as a heavy-duty pedestal to secure the cluster box unit mailboxes to the ground, plus thicker aluminum wrapping and reinforced cabinets to combat mail theft.

Learn more about why cluster box units are the Most Popular Solution for Centralized Delivery Projects and Favored Solution for Multi-Tenant Delivery.

For property managers seeking three or more cluster box unit mailboxes, The MailboxWorks offers quantity discounts on multiple CBU mailbox sales.

Please contact The MailboxWorks by phone at 1-800-824-9985 or by email to learn more about current pricing on Florence CBU Mailboxes. Ask about our current promotions too!

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