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CBU Mailboxes FAQ

How are CBU cluster mailboxes mounted?

CBU cluster mailboxes can only be mounted on a pedestal and cannot be attached to a wall.

Can you put outgoing mail in a cluster mailbox?

Yes, cluster mailboxes can be ordered with an outgoing mail slot.

Do cluster mailboxes come with a parcel locker?

Yes, by regulation, all cluster mailboxes with 10 or more mailbox units must also include a minimum of one parcel locker.

How secure are CBU mailboxes?

USPS approved CBU mailboxes are robotically welded, high security, tamper proof commercial mailboxes made from industrial grade aluminum. They are also weatherproof and come with tamper-proof heavy-duty cam locks.

Do cluster mailboxes come with installation instructions?

Yes, cluster mailbox installation instructions are available through the MailboxWorks. If you still have questions about cluster mailbox installation, please email customer care.

Do you carry cluster mailbox replacement parts?

Yes, you can order cluster mailbox replacement parts on our Mailbox Replacement Parts page.

Do I need to buy my own anchor bolts?

Yes. Since installations may vary, anchor bolts are not supplied as per USPS regulations.

Can the parcel locker be used as a tenant mailbox?

No. USPS does not allow parcel lockers to be used for any other purpose. The removal, conversion, or modification of CBU parcel lockers is strictly prohibited.

Can I change the configuration on my F-series cluster mailboxes?

No, USPS does not allow any modifications to the commercial CBU mailbox configuration in any way.

Do you carry CBU mailboxes for private mail delivery?

Yes. The CBU commercial mailboxes we carry can be used for private mail delivery service and would require that you buy your own parcel locker and master door conversion locks.

Do you sell used CBU cluster mailboxes?

No. We only sell new CBU mailboxes.


Customers who trusted us with their projects:

Balfour Beatty
Caterpillar
Cisco
Department of Defense
Department of State
Harvard University
JP Morgan
Major League Baseball (MLB)
NBC
Oregon Tech
Syracuse University
USPS

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