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These mailboxes range from multi-post mount curbside boxes to traditional USPS cluster boxes (described in the next section). You may need to replace existing 4B horizontal or vertical installations if your apartment complex is older.
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CBUs (Cluster Box Units) are usually mounted on pedestals and included in every unit we sell. They are the most common type of commercial mailbox and meet the USPS standard for outdoor, centralized mail delivery. All CBUs have locks for secure mail handling and meet USPS security guidelines. Keys are provided and typically taped inside the unit's parcel locker.
These have the same door specifications as the CBU mailboxes but are typically recessed-mounted indoors or in an outdoor stand or kiosk. The 4C is the current USPS standard for new developments. Like the CBU, 4Cs fully lock and meet USPS security and door-size requirements.
Learn More About Community Mailboxes
The 4B horizontal/vertical mailboxes are for replacement use only, as they are the previous USPS standard for commercial installations. These units can also be purchased for private delivery. While these units adhere to older USPS security standards, they are fully locking and include keys for each tenant door.
Our goal is to provide top-quality products and unmatched customer support. We want to be your trusted source for all your mailbox needs and we are proud to deliver excellence and reliability, ensuring a seamless experience from the purchasing phase through installation and maintenance. But don't just take our word for it—see what our customers say! Read our reviews and discover why many rely on us for mailbox solutions.
Since 1984, Select Commercial Mailboxes has been committed to delivering high-quality commercial mailboxes backed by over 40 years of industry expertise. With free shipping across the continental United States, we make it easier than ever to get the reliable mailbox products you need without the added cost. Our time-tested reputation is built on exceptional customer service and support, ensuring you have expert guidance.
Discover why so many trust us for their mailbox solutions and experience the difference in working with a company that is committed to your satisfaction.