Explore Cluster Box Units, Pedestal CBUs and Outdoor Mail Receptacles
U.S. Mail Supply offers a full selection of outdoor cluster mailboxes, including pedestal-mounted CBUs, mail drop boxes and outdoor mail receptacles designed for centralized delivery. Each CBU features locking tenant compartments and a secure master door for postal carriers, making them ideal for multifamily developments, business parks and government properties.
Our outdoor cluster mailboxes deliver long-term durability and reliable mail security in high-traffic areas. Whether you're installing a new cluster mail system or replacing older units, our commercial-grade CBUs and drop boxes are built to handle daily use, weather exposure and USPS delivery requirements with ease.
Cluster Mailboxes Built for Security and Durability
- USPS-approved for official outdoor mail delivery
- Heavy-duty aluminum or steel resists tampering and weather damage
- Locking tenant compartments with central carrier access
- Parcel lockers and outgoing mail slot included on all units
- Offered in multiple configurations: 4, 8, 12, 13 or 16 doors
Ideal for Residential and Commercial Properties
Cluster mailboxes support safe, organized mail delivery across a range of outdoor environments.
- Apartment complexes and multi-family developments
- Office parks and government buildings
- Schools, universities and healthcare campuses
- Warehouses and industrial job sites
- New construction and redevelopment projects
Custom Options Available
Customize your outdoor cluster mailbox to match your layout and property design.
- Choose from several unit counts and compartment configurations
- Powder-coated finishes available in black, dark bronze, sandstone, postal grey, white or forest green
- Option of decals or engraved doors with customization options at no extra cost
- Matching pedestals are included with all units
USPS Requirements for Outdoor Cluster Mailboxes
- USPS often requires 1 parcel locker for every 5 tenant boxes. Always consult with your local Postmaster to confirm your requirement
- Master door access for secure mail handling
- Your local postmaster must approve the installation location
Why Buy from U.S. Mail Supply
- Wide selection of USPS-approved models for every application
- Volume discounts available
- Trusted by contractors, architects, property managers, land developers, schools and municipalities across the U.S.
Contact our team today for help finding the best drop box solution for your property
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