8 Tenant Door 4C Series Horizontal Mailbox Unit with 2 Parcel Lockers and 1 Outgoing Mail (Wall Mount, ADA Max Height) USPS Approved – H4CADD-08
$1,711.50 Original price was: $1,711.50.$1,611.50Current price is: $1,611.50.
Free Shipping* until 10/31/26!
*Does not apply to orders shipped to Canada, Hawaii, or AlaskaHigh-security Commercial Horizontal Mailboxes Made in the USA

Unit Size: 37-1/4″H x 31-9/16″W x 17″D
Total Doors: 8 Tenant Compartments, 2 Parcel Lockers
Tenant Compartment Sizes: 3-1/4″H x 12″W x 15″D
Parcel Locker Sizes: 17″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
WHOLESALE PRICING
For quantities of 5 or more – Request Quote or Call 800-676-5161 for BULK wholesale pricing
High-security Commercial Horizontal Mailboxes Made in the USA
H4CADD-08: Redefining Inclusive Mail Management
National Mailboxes presents the H4CADD-08, a groundbreaking solution in their secure delivery portfolio. This ADA-compliant, max-height wall-mounted unit features 8 tenant doors, 2 parcel lockers, and an outgoing mail slot, revolutionizing accessible mail handling for multi-tenant environments. Proudly crafted in the USA, this system embodies the perfect balance of inclusivity, security, and efficiency.
Accessibility Without Compromise: Shatter the barriers of traditional mail systems. The H4CADD-08 maximizes functionality while ensuring universal access, offering an unparalleled solution for diverse tenant needs in modern urban settings.
Tri-Functional Excellence in Inclusive Design:
- Surpasses USPS STD-4C requirements, delivering top-tier security in an ADA-compliant package
- Max ADA height configuration optimizes mail and parcel flow for all users
- Seamlessly integrates with progressive architectural visions, enhancing building aesthetics
Adapting to the Pulse of Inclusive Urban Living: From forward-thinking residential complexes to innovative corporate hubs, this versatile unit effortlessly meets the evolving mail handling demands of today’s diverse cityscapes.
Championing Equity in Mail Management: Meticulously engineered to exceed Fair Housing ADA standards, the H4CADD-08 sets a new benchmark in accessible mail solutions without sacrificing capacity or security.
Seamless Integration for Visionary Developers: Property managers will appreciate the unit’s adaptable wall-mount design, perfect for both new constructions and renovation projects aiming to maximize accessibility and efficiency.
Pioneering Inclusive Communication Hubs: Embrace the future of equitable mail management. The H4CADD-08 isn’t just a mailbox – it’s a statement in efficient, accessible, and compliant urban living for all.
Innovation at the Forefront of Regulatory Compliance: While prioritizing accessibility, this unit strictly adheres to all USPS and building standards, ensuring a future-proof solution for even the most demanding multi-tenant environments.
Investing in the H4CADD-08 means choosing a system that prioritizes inclusivity, security, and domestic craftsmanship. Experience the next evolution of commercial mailboxes designed for the diverse, modern cityscape. Whether you’re overseeing an inclusive residential complex, an adaptive corporate center, or a progressive mixed-use development, this unit is engineered to exceed expectations and transform your mail operations while ensuring compliance and accessibility for all tenants in our ever-evolving urban landscapes.
Unit Size: 37-1/4″H x 31-9/16″W x 17″D
Total Doors: 8 Tenant Compartments, 2 Parcel Lockers
Tenant Compartment Sizes: 3-1/4″H x 12″W x 15″D
Parcel Locker Sizes: 17″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:
- H4CADD-08 Cut Sheet
- 4C Wall Mount ADA Max Height Suite
- 4C Wall Mount Units Installation Manual
- 4C Surface Mount Collar Installation Manual
- Care and Cleaning
- Sustainability & Leed
- Warranty
Related Top Selling Commercial Mailboxes:
- 8 to 15 Door Freestanding Depot Enclosures with 4C Horizontal Mailboxes
- Rear Loading Private Distribution Wall Mount Horizontal Mailboxes
- Standard Style High Security Cluster Box Units – USPS Approved
Similar 4C Horizontal Wall Mount Mailboxes:
- 9 Tenant Doors with 2 Parcel Lockers – 4C Wall Mount ADA Max Height Horizontal Unit
- 8 Tenant Doors with 1 Parcel Locker – 4C Wall Mount 15-High Horizontal Mailbox Unit
- 8 Tenant Doors with 1 Outgoing Mail – 4C Wall Mount 10-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?
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