Recessed Mounted 4C Horizontal Mailbox – Maximum Height, Double Column, Custom Color, Front Loading, USPS AccessSalsbury 4C Recessed Double Column Mailbox, Front Loading, USPS Access USPS approved 4C recessed horizontal mailbox designed for apartments and commercial buildings. Maximum height, double column unit with heavy duty aluminum construction, integrated parcel lockers, and outgoing mail compartment. Front loading with carrier master access for secure, efficient mail delivery. Key Features: USPS STD 4C Compliant: Approved for new construction and major

Salsbury 4C Recessed Double-Column Mailbox, Front-Loading, USPS Access

USPS-approved 4C recessed horizontal mailbox designed for apartments and commercial buildings. Maximum-height, double-column unit with heavy-duty aluminum construction, integrated parcel lockers, and outgoing mail compartment. Front-loading with carrier master access for secure, efficient mail delivery.

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Key Features:

• USPS-STD-4C Compliant: Approved for new construction and major renovations with carrier master access door.
• Durable Construction: Heavy-duty aluminum with stainless steel hardware and powder-coated finish for indoor/outdoor use.
• Secure Access: Heavy-duty cam locks with dust/rain shields and anti-fish plate behind outgoing mail slot.
• Efficient Configuration: Double-column, maximum-height unit with individually numbered tenant compartments and integrated parcel lockers.
• Custom Options: Available in multiple colors and configurations; includes trim and solid rear cover for clean recessed install.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Mounting Type	Recessed-mounted
Configuration	Double column; maximum height unit
Loading	Front loading; USPS access
Overall Size	31.125" W x 57.125" H x 16.5" D
Construction	Heavy-duty aluminum with stainless steel hardware
Finish	Durable powder-coated (custom colors available)
Compliance	USPS-STD-4C approved; ADA height compliant units available
Security	Heavy-duty cam locks with dust/rain shield; anti-fish plate on rear of mail slot
Outgoing Mail	Compartment includes 11-3/4" W x 3/4" H mail slot with weather hood; labeled "Outgoing Mail"
Parcel Lockers	Fully integrated; meets USPS requirement of minimum 1 parcel locker per 5 tenant compartments
Included Components	Factory-installed 1" W x 1/4" D trim; solid rear cover; 4C horizontal mailbox connector kit
Door Sizes	MB1: 3-1/4" H x 12-3/4" W; MB2: 6-3/4" H x 12-3/4" W; MB3: 10-1/4" H x 12-3/4" W; MB4: 13-3/4" H x 12-3/4" W

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Frequently Asked Questions (FAQ):

Q: Is this unit USPS approved?
A: Yes. It is manufactured to USPS-STD-4C specifications and includes the USPS master access door for carrier use.

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Q: Can it be installed outdoors?
A: Yes. The heavy-duty aluminum construction and powder-coated finish support indoor or outdoor installations.

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Q: What loading type does it use?
A: Front-loading for USPS access and mail distribution.

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Q: Does it include parcel lockers?
A: Yes. Fully integrated parcel lockers are included to meet USPS 4C requirements.

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Q: Are custom colors available?
A: Yes. Custom colors and configurations are available upon request.

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A Sleek, Architectural Mail Center for Modern Communities

This recessed 4C mailbox delivers a refined, built-in look that streamlines lobbies and corridors. Clean lines and a powder-coated aluminum finish create a crisp, contemporary façade, while the double-column layout maximizes function without visual clutter. Pair it with neutral wall panels and minimalist signage for a polished, hospitality-grade mail zone. It’s a sophisticated, security-forward essential for luxe multi-family living.

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Outfit your building with USPS-approved, secure mail delivery—choose this Salsbury 4C recessed unit today.

Installation