A cluster mailbox or cluster box unit (CBU) is an outdoor, free-standing, front-loading, pedestal-mounted mailbox designed for USPS centralized mail delivery. Cluster mailboxes provide an efficient mailbox solution for the USPS by allowing postal carriers to deliver mail and packages to multiple recipients or mailboxes in one stop.

A cluster box unit (CBU) mailbox is a freestanding, pedestal-mounted mailbox that consists of multiple mailbox compartments and parcel lockers that can lock individually. The United States Postal Service (USPS) will deliver mail and parcels to …

A cluster mailbox or cluster box unit (CBU) is a free-standing, pedestal mailbox with 8, 12, 13, or 16 individually locked mailbox compartments and up to 2 integrated parcel lockers approved by the U.S. Postal Service. Since all cluster boxes are USPS Approved mail delivery equipment, they are the most common community mailboxes on the market.

Cluster Box Units (CBUs) are centralized mail delivery systems designed for multi-tenant properties such as apartment complexes, condominiums, and office buildings. These secure, weather-resistant units provide an efficient solution for mail and package delivery, benefiting both residents and property managers.

Salsbury Industries manufactures U.S.P.S. approved Cluster Box Units (CBU’s). Our 3300 series meets U.S.P.S. "F" specifications and holds an official license for centralized mail delivery.

All outdoor mailboxes from U.S. Mail are USPS approved. Cluster outdoor boxes are offered in 4 door, 8 door, 12 door, 13 door, and 16 door configurations. All styles are offered in different colors to fit any property type. Discounted Pricing for 2+ units! Additional Discounts for Members! Discounted Pricing for 2+ units!

Out of all the mailboxes designed for multi-tenant centralized outdoor mail delivery, the cluster box unit (CBU) is the most popular. Salsbury’s durable and corrosion-resistant CBU’s are constructed of heavy-duty aluminum and stainless steel hardware with a powder coated finish that will stand up well to harsh weather conditions.

Whether you plan to serve four or 2,000 residents, cluster mailboxes or cluster box units (CBU) provide a flexible solution to accommodate your building project needs. These standard stock units include parcel lockers and outgoing mail collection to be used individually or in larger group installations - all providing a convenient, secure ...

At Mailbox Directs, we sell durable, highly secure cluster mailbox units (CBUs) that your customers or tenants can rely on for their mail. Chat with our team of experts to help you get the right Florence mailbox for your commercial or residential needs – we’re here to help.

Each Cluster Box Unit (CBU) includes a heavy-duty mailbox, a free-standing pedestal for installation, front-loading tenant doors, a master door for package delivery, and tenant keys strapped to the inside.