Description
High-security Commercial Horizontal Mailboxes Made in the USA

H4C16D-09: The Apex of Vertical Oversized Mail and Parcel Management
National Mailboxes presents the H4C16D-09, a groundbreaking solution at the forefront of secure delivery systems. This max-height wall-mounted marvel, featuring 9 oversized tenant doors, 2 parcel lockers, and an outgoing mail slot, redefines efficiency for high-volume, vertically-oriented multi-tenant environments. Proudly manufactured in the USA, this system exemplifies the ultimate fusion of capacity, versatility, and vertical space utilization.
Reaching for the Stars in Mail Distribution: Transcend the limits of conventional mail management. The H4C16D-09 capitalizes on every millimeter of vertical potential, offering an unparalleled solution for buildings with substantial oversized mail and package needs.
Tri-Functional Excellence at the Pinnacle:
- Surpasses USPS STD-4C requirements, providing fortress-like security for oversized mail and parcels at maximum allowable height
- Max-height configuration with oversized compartments optimizes flow for large-format mail, packages, and outgoing correspondence
- Seamlessly integrates with avant-garde architectural visions, enhancing the aesthetic of the most ambitious vertical spaces
Adapting to the Pulse of Vertical Urban Evolution: From cutting-edge supertall residential towers to landmark corporate headquarters, this versatile unit effortlessly meets the dynamic oversized mail and parcel handling demands of tomorrow’s most audacious vertical developments.
Championing Efficiency at the Zenith: Engineered to maximize capacity for oversized items without compromising accessibility, the H4C16D-09 ensures smooth distribution of large-format mail and packages in buildings where every vertical inch is invaluable.
Seamless Integration for Visionary Skyline Shapers: Property managers will marvel at the unit’s adaptable wall-mount design, perfect for both record-breaking skyscrapers and ambitious high-rise renovations aiming to accommodate tenants with substantial mail volume and oversized package needs.
Pioneering Oversized Solutions for the Vertical Metropolis of Tomorrow: Embrace the vanguard of urban mail and parcel management at its apex. The H4C16D-09 isn’t just a mailbox – it’s a testament to efficient, secure, and future-proof living in the age of e-commerce and extreme vertical urban expansion.
Innovation at the Summit of Regulatory Compliance: While pushing the boundaries of vertical design and capacity to their absolute limit, this unit meticulously adheres to all USPS and building standards, ensuring a lasting solution for even the most ambitious supertall projects.
Investing in the H4C16D-09 means choosing a system that prioritizes maximum vertical efficiency, oversized capacity, and domestic craftsmanship on an unprecedented scale. Experience the pinnacle of commercial mailboxes designed for the most demanding and vertically ambitious urban environments. Whether you’re overseeing a record-shattering residential spire, a landmark corporate tower, or a visionary mixed-use development that kisses the clouds, this unit is engineered to surpass all expectations and revolutionize your oversized mail and package operations while ensuring compliance and accessibility for all tenants in our ever-ascending urban landscape.
Unit Size: 56-1/2″H x 31-9/16″W x 17″D
Total Doors: 9 Tenant Compartments, 2 Parcel Lockers
Tenant Compartment Sizes: 6-1/2″H x 12″W x 15″D
Parcel Locker Sizes: 10″H x 12″W x 15″D
Outgoing Mail Compartment: 6-1/2″H x 12″W x 15″D
Colors: Antique Bronze, Black, Dark Bronze, Gold Speck, Postal Grey, Sandstone, Silver Speck, and White
Product Features:
- Front Loading Horizontal Style
- All Tenant Locks and Keys are Included
- Superior strength, corrosion resistance, and exceptional durability for indoor AND outdoor installations
- Tenant doors include heavy duty, dustproof cam locks each with 3 keys
- Parcel Locker doors include heavy duty dustproof lock with 3 keys which secures the collection bin until pickup is made
- Includes one outgoing mail compartment with slot, anti-fish comb for security, and protective hood
- Tenant Door Identification options include Standard Number Plates, Custom Number Plates, or Custom Engraved Numbering (Increases Lead Time)
- Made of heavy gauge aluminum
- USPS Approved to STD-4C regulations required for all new construction and major renovation projects
- 4C standard mailboxes are fully-recessed for in-wall mounting. Surface-mount collar and kiosk kits are available at an additional charge.
- USPS regulations require a minimum of one parcel locker for every ten tenant compartments and one outgoing mail slot per unit
- Factory installed integral trim surrounds mailbox and unique MUCK (multi-unit connector kit) included for easy installation of multiple 4C mailboxes
- Minimum wall depth of 17″ required for Fully-recessed 4C mailboxes
- Please Note: This large commercial mailbox is made to order and is non-returnable
Downloads:
- H4C16D-09 Cut Sheet
- 4C Wall Mount Units Installation Manual
- 4C Surface Mount Collar Installation Manual
- Care and Cleaning
- Sustainability & Leed
- Warranty
Related Top Selling Commercial Mailboxes:
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Similar 4C Horizontal Wall Mount Mailboxes:
- 9 Oversized Tenant Doors with 2 Parcel Lockers – 4C Wall Mount 15-High Horizontal Unit
- 9 Oversized Tenant Doors with 1 Outgoing Mail – 4C Wall Mount 10-High Horizontal Mailbox Unit
- 9 Tenant Doors with 2 Parcel Lockers – 4C Wall Mount 11-High Horizontal Mailbox Unit
4C Mailboxes FAQs:
- Are 4C Mailboxes Easy To Install? A Comparison
- Are Any Types of Commercial Mailboxes Being Phased Out?
- Are There Special Requirements for 4C Mailboxes?
- What are NEW Freestanding Depot Enclosures with 4C Horizontal Mailboxes?
- What Are 4C Recessed and Surface-Mounted Mailboxes?
- What Are the Benefits of 4C Mailboxes?





















