Salsbury Surface Mounted 4C Horizontal Mailbox Unit, Double Column, Black, Front Loading, USPS AccessSurface Mounted Double Column 4C Mailbox, Black, USPS Front Load Durable surface mounted 4C horizontal mailbox system designed for USPS front loading access in multi tenant settings. The double column unit pairs a heavy duty aluminum mailbox with a matching surface enclosure for indoor or outdoor installation. Key Features: USPS Approved Access: Front loading master door panels with carrier access for USPS provided arrow lock. Heavy Duty Construction:

Surface-Mounted Double-Column 4C Mailbox, Black, USPS Front-Load

Durable surface-mounted 4C horizontal mailbox system designed for USPS front-loading access in multi-tenant settings. The double-column unit pairs a heavy-duty aluminum mailbox with a matching surface enclosure for indoor or outdoor installation.

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Key Features:

• USPS Approved Access: Front-loading master door panels with carrier access for USPS-provided arrow lock.
• Heavy-Duty Construction: All-aluminum body with stainless steel hardware and weather-resistant powder-coated black finish.
• Tenant Convenience: Individually numbered compartments plus outgoing mail slot with protective hood and anti-fish plate.
• Parcel Capacity: Fully integrated parcel lockers meet 4C requirements for package delivery.
• Easy Surface Install: Ideal where walls aren’t deep enough for recessed mounting; minor assembly required.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Configuration	Double column, 1 door wide x 2 columns (4C horizontal)
Mounting Type	Surface mounted with matching enclosure
Access Type	Front loading; USPS carrier access door for master arrow lock
Finish/Color	Black, powder-coated
Material	Heavy duty aluminum with stainless steel hardware
Use	Indoor or outdoor
Unit Dimensions	31.75 in W x 42 in H x 17 in D
Door Sizes	MB1: 3-1/4 in H x 12-3/4 in W; MB2: 6-3/4 in H x 12-3/4 in W; MB3: 10-1/4 in H x 12-3/4 in W; MB4: 13-3/4 in H x 12-3/4 in W
Outgoing Mail	11-3/4 in W x 3/4 in H slot with weather protection hood and anti-fish plate
Locks	Heavy-duty cam locks; tenant doors include lock with dust/rain shield and 3 keys
Parcel Lockers	Fully integrated; complies with 4C requirement of 1 parcel locker per 5 tenant compartments
Compliance	Meets USPS 4C standards; ADA height compliant units available
Series	Salsbury 3800 Series 4C Horizontal Mailboxes

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Frequently Asked Questions (FAQ):

Q: Is this mailbox USPS approved and front loading?
A: Yes, it is a USPS-approved 4C unit with front-loading master door panels and carrier access door.

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Q: Can it be installed outdoors?
A: Yes, it’s built for indoor or outdoor use with a durable powder-coated finish.

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Q: What materials are used?
A: Constructed of heavy-duty aluminum with stainless steel hardware for longevity.

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Q: Does it include parcel lockers and outgoing mail?
A: Yes, it features fully integrated parcel lockers and an outgoing mail compartment with a slotted, hooded opening.

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Q: What if my wall isn’t deep enough for recessed installation?
A: This surface-mounted enclosure allows installation on shallow walls without recessing.

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Sculptural Utility for High-Traffic Lobbies

This double-column mailbox reads as a crisp, architectural statement—matte black planes punctuated by precise, numbered doors. I love the balance of slim tenant compartments with bold, integrated parcel lockers—practicality elevated to design. Float it against light stone or warm wood to let the silhouette sing, and mirror its grid with linear lighting above. It’s a refined essential that organizes the everyday with quiet luxury.

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Outfit your property with secure, USPS-ready mail delivery—choose this surface-mounted 4C unit today.

Installation