Salsbury Industries 3800 Horizontal Series 4-Compartment Surface Mount Mailbox3800 Series Surface Mount 4 Compartment Mailbox Durable 4C horizontal mailbox unit housed in a surface mounted enclosure for locations without deep walls. Built from heavy duty aluminum with stainless steel hardware, its ideal for apartments, commercial buildings, and residential developments with USPS access. Key Features: Surface Mount Convenience: Installs where recessed mounting isnt possible, for indoor or outdoor use. Heavy Duty Construction:

3800 Series Surface-Mount 4-Compartment Mailbox

Durable 4C horizontal mailbox unit housed in a surface-mounted enclosure for locations without deep walls. Built from heavy-duty aluminum with stainless steel hardware, it’s ideal for apartments, commercial buildings, and residential developments with USPS access.

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Key Features:

• Surface-Mount Convenience: Installs where recessed mounting isn’t possible, for indoor or outdoor use.
• Heavy-Duty Construction: Aluminum body with stainless steel hardware and powder-coated finish for long-lasting performance.
• USPS-Ready Access: Front-loading design with carrier access door for USPS-provided master arrow lock.
• Secure Compartments: Individually numbered doors with heavy-duty cam locks; integrated parcel locker included.
• Outgoing Mail Management: Labeled slot with weather hood and anti-fish plate to prevent tampering.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Series	3800 Series 4C horizontal mailbox
Mounting	Surface-mounted enclosure
Loading/Access	Front loading; carrier access door for USPS master arrow lock
Construction	Heavy-duty aluminum with stainless steel hardware
Finish options	Powder-coated in aluminum, bronze, sandstone, or black
Unit size	17.75" W x 57.75" H x 17" D
Weight	130 lbs
Doors	Individually numbered compartments with heavy-duty cam locks and dust/rain shields; includes 3 keys per door
Outgoing mail	11-3/4" W x 3/4" H slot with weather protection hood; anti-fish plate; labeled 'Outgoing Mail'
Parcel locker	Fully integrated locker (PL4.5 height 15-1/2")
Compliance	USPS 4C compliant; ADA height compliant units available
Columns	Single column (1 door wide); configurations also available in double column
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 compliant?
A: Yes. It includes a USPS master lock access door (lock installed by USPS) and meets 4C standards.

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

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Q: How is outgoing mail handled?
A: A dedicated, labeled outgoing mail compartment includes a 11-3/4" W x 3/4" H slot with a weather protection hood and anti-fish plate.

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Q: What configurations are available?
A: Units are offered in multiple heights and configurations, including single and double column layouts; custom units and colors are available.

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Q: What materials are used?
A: Heavy-duty aluminum construction with stainless steel hardware for durability and corrosion resistance.

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Streamlined Mailroom Elegance

This sleek, powder-coated mailbox column brings order and refinement to shared spaces. The rhythmic, numbered doors and integrated parcel locker create a modern, architectural grid that feels tailored and intentional. Style it against a neutral wall with clean signage for a polished lobby statement. A smart, secure essential that elevates daily living with quiet luxury.

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Upgrade your building with a secure, USPS-ready surface-mount mailbox that installs easily and stands up to daily use.

Installation