Commercial Mailboxes - USPS & private delivery
If you’re shopping for a commercial mailbox, choose US Mail Supply. Our online mailbox store is convenient if you know exactly what you want, but if you don’t, our friendly, knowledgeable staff will make orders over the phone easy. Need a custom configuration? We can help you with that too!
US Mail Supply specializes in mailboxes for every application – homes, offices, apartment buildings, colleges, military facilities, medical centers, and more.
Commercial Mailboxes - USPS Delivery
Browse all commercial indoor and outdoor mailboxes built for USPS access. Some models are USPS approved and others are USPS approved for replacement only. Always check with your local postmaster for local requirements for USPS commercial mailboxes.
Commercial Mailboxes - Private Delivery
Shop all commercial mailboxes for private delivery or centralized distribution. Many mailbox models are built for USPS access by default but also offer models for private distribution.
Cluster Mailboxes
Unique vintage style lockable decorative cluster commercial mailbox units are a perfect addition for luxury apartment complexes or condos & town house subdivisions.
Outdoor Commercial Mailboxes
Outdoor commercial mailboxes for sale at U.S. Mail Supply include curbside pedestal mount cluster mailboxes and large contemporary decorative metal mailboxes.
Indoor Commercial Mailboxes
Shop recessed, wall-mounted indoor horizontal and vertical commercial-grade mailboxes for small and large businesses and multi-unit residences.
Horizontal Mailboxes
Shop recessed, wall-mounted indoor horizontal and vertical commercial-grade mailboxes for small and large businesses and multi-unit residences.
4C Horizontal Mailboxes
Steel and aluminum heavy metal construction makes commercial USPS approved 4C horizontal mailboxes a tough-as-nails option for apartments, offices, condos, schools, municipal buildings and multi-family residences.
4C Depot Mailboxes
US Mail Supply offers secure locking 4C Horizontal depot mailboxes for apartments and business parks. They come in many styles and sizes – from decorative style free-standing mailboxes to classic style commercial mailboxes.
4B+ Vertical Mailboxes
We offer metal commercial vertical mailboxes from 3 slots to 7 slots. Recess wall mount and surface mountable options available.
Postal Drop Boxes
Packages and letters are safe in pedestal-mounted secure, locking commercial drop boxes and letter lockers available for sale from U.S. Mail Supply.
USPS Approved Mailboxes
All USPS approved mailboxes - these units are manufactured to comply with USPS standards. But it's always a good idea to check with your local postmaster for USPS requirements in your area before installation.
Office Mailboxes
Shop metal office mailboxes for employees, built tough against heavy use in hectic commercial environments.
USPS Commercial Mailbox Requirements
USPS commercial mailbox requirements dictate all new construction and major renovations must meet STD-4C specifications. New STD-4C specifications meet ADA standards and outline new size dimensions. USPS approved commercial mailboxes ensure safe delivery of mail and parcels, and are perfect for strip malls, office buildings, and more.