Salsbury Industries
Salsbury 4C Horizontal Mailbox, Front-Loading, Aluminum, 56-3/4 in H x 31-1/8 in W, 20 MB1 Doors with 2 Parcel Lockers
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SKU 202793733
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Details
Salsbury Front-Loading 4C Horizontal Mailbox, 20 Doors/2 Parcel Lockers
USPS-STD-4C approved recessed 4C horizontal mailbox built from heavy-duty aluminum with stainless hardware. This double-column, front-loading unit provides 20 tenant compartments plus two integrated parcel lockers and an outgoing mail slot, ideal for apartments and commercial buildings.
Key Features:
- USPS Approved 4C Design: Complies with USPS-STD-4C for new construction and renovations
- Durable Construction: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
- Secure Access: Heavy-duty cam locks with dust/rain shields and 3 keys per door; carrier access door for USPS arrow lock
- Integrated Parcel Lockers: Two built-in parcel lockers meet the 1:5 parcel-to-tenant ratio
- Flexible Installation: Recessed mount with factory-installed trim; indoor/outdoor use
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Series | Salsbury 3700 Series 4C Horizontal Mailboxes |
| Mounting Type | Recessed mount |
| Access Type | Front loading (USPS access) |
| Overall Dimensions | 31.125 in W x 57.125 in H x 16.5 in D |
| Unit Height Class | Maximum height unit (56-3/4 in nominal) |
| Tenant Compartments | 20 MB1 doors |
| Parcel Lockers | 2 integrated parcel lockers (meet 1:5 ratio) |
| Outgoing Mail | Outgoing mail compartment with 10-3/4 in W x 3/4 in H slot and weather hood |
| Door Sizes | MB1 doors: 3-1/4 in H x 13-1/4 in W |
| Construction | Heavy-duty aluminum with stainless steel hardware |
| Finish | Durable powder coat (aluminum, bronze, gold, sandstone options) |
| Locks | Heavy-duty cam locks; 3 keys per tenant door; carrier access door accepts USPS master arrow lock |
| Compliance | Manufactured to USPS-STD-4C; ADA height compliant units available |
| Included | Factory-installed 3/4 in W x 1/4 in D trim; solid rear cover; connector kit to join multiple units |
| Use | Indoor or outdoor |
Frequently Asked Questions (FAQ):
Q: Is this mailbox USPS approved?
A: Yes, it is manufactured to USPS-STD-4C and approved for USPS access.
Q: How is it installed?
A: It is a recessed-mounted unit with factory-installed trim; follow the included installation instructions and technical drawings.
Q: Can it be used outdoors?
A: Yes, it is designed for indoor or outdoor use with a durable powder-coated finish.
Q: What are the compartment sizes?
A: MB1 tenant doors are 3-1/4 in H x 13-1/4 in W; unit includes two parcel lockers meeting USPS 4C requirements.
Q: Does it include an outgoing mail slot?
A: Yes, it has a labeled outgoing mail compartment with a 10-3/4 in W x 3/4 in H slot and weather hood.
Streamlined Mail Organization with Architectural Presence
This 4C mailbox reads as a refined architectural element—sleek aluminum planes and crisp geometry that tidy a lobby with conviction. The hand-finished, powder-coated surface offers a subtle sheen, while the rhythm of numbered doors creates an elegant, ordered façade. Pair it with warm wood cladding or honed concrete to strike a modern, hospitality-grade moment. It’s a polished essential that elevates daily routines into a gesture of considered luxury.
Outfit your building with USPS-approved, secure mail delivery—add this Salsbury 4C mailbox to your project today.
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