9-compartment surface-mounted 4C horizontal mailbox

Durable 4C horizontal mailbox system designed for surface mounting where recessed installation isn’t possible. Constructed of heavy-duty aluminum with stainless steel hardware for indoor or outdoor use, it includes 9 tenant compartments, an outgoing mail slot, and an integrated parcel locker.

Key Features:

• Surface-Mount Convenience: Installs with included enclosure when wall depth won’t allow recessing
• Heavy-Duty Build: All-aluminum construction with stainless steel hardware for long-lasting, weather-resistant performance
• Secure Access: Front-loading design with heavy-duty cam locks and USPS master lock access door
• Organized Delivery: 9 individually numbered MB1 doors plus outgoing mail slot and fully integrated parcel locker (PL4.5)
• Code-Compliant Design: Meets USPS 4C requirements; suitable for apartments, commercial buildings, and residential developments

Please check the Product Data Sheet Here

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Is this unit USPS approved?
A: Yes. It’s a USPS-approved 4C horizontal mailbox with a carrier access door for a USPS-provided master arrow lock.

Q: How many tenant compartments are included?
A: Nine MB1 tenant doors are included, plus an outgoing mail slot and an integrated parcel locker.

Q: Can it be installed outdoors?
A: Yes. The aluminum construction and powder-coated finish are suitable for indoor or outdoor installations.

Q: What are the overall dimensions?
A: Approximately 17.75 in W x 57.75 in H x 17 in D for the surface-mounted enclosure.

Q: Does it include locks and keys for tenant doors?
A: Yes. Doors include heavy-duty cam locks with a dust/rain shield and come with 3 keys per door.

Streamlined Mailroom Elegance

This sleek aluminum mailbox column brings a disciplined rhythm to common areas, turning mail delivery into a refined daily ritual. The slim profile and numbered doors create a clean, architectural grid, while the integrated parcel locker is a discreet modern luxury. Pair it with monochrome walls and brushed hardware to echo its polished, utilitarian beauty. It’s a smart, timeless fixture that elevates multifamily and commercial corridors alike.

Upgrade your property’s mail center with this secure, surface-mounted 4C mailbox—built to install easily and perform for years.

Installation