NEW 4C Horizontal Wall Mount High Security Type Commercial Mailboxes - USPS Approved
High-quality Commercial Mailboxes made in the USA
The NEW 4C Series Horizontal Wall Mount Mailboxes offered and manufactured by National Mailboxes are now required and mandatory for ALL new construction and major renovation wall mount installations according to the U.S Postal Service. This new postal regulation and requirement is for all U.S mail delivery in the USA. The new (USPS Approved) 4C Horizontal Mailboxes are high security type and front loading style with larger tenant compartments for more mail capacity, equipped with parcel locker compartments for packages and include outgoing mail compartments for outgoing mail. Standard models are recessed in-wall mount style and optional surface mount collar enclosures are available for surface wall mounting. All tenant locks and keys are included and a wide selection of protective finish colors are offered. Optional private master locks for private use/access delivery are available upon request. Learn More
Downloads:
– 4C Horizontal Mailboxes – USPS Approved and STD-4C Compliant
– 4C Horizontal Mailboxes Installation Manual
– 4C Surface Mount Collar Enclosure Installation Manual
– Accessibility Installation References and ADA Requirements
– 4C Horizontal Mailboxes Maintenance Manual
– U.S. Postal Service STD-4C Specification Highlights
For more product info contact the National Mailboxes Customer Support Center at 1-800-676-5161
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1 to 7 Tenant Doors 4C Horizontal Wall Mount Mailboxes – NEW High Security - USPS Approved (43)
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8 to 15 Tenant Doors 4C Horizontal Wall Mount Mailboxes – NEW High Security - USPS Approved (39)
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16 to 29 Tenant Doors 4C Horizontal Wall Mount Mailboxes – NEW High Security - USPS Approved (16)
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NEW 4C Horizontal Wall Mount Parcel Lockers - For Packages Only - High Security - USPS Approved (19)
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NEW 4C Horizontal Wall Mount Collection and Drop Boxes – High Security - USPS Approved (9)
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NEW 4C Horizontal Wall Mount Trash and Recycling Collection Bin Units (9)
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NEW Freestanding Depot Enclosure with 4C Horizontal Mailboxes - High Security Type (USPS Approved) (75)
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Freestanding 4C Depot Cabinet Enclosures for 4C Horizontal Mailboxes (8)
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Surface Mount Collar Enclosures for 4C Horizontal Mailboxes (Required for Surface Wall Mounting) (22)
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Accessories for 4C Horizontal Mailboxes (18)
Product Overview: STD-4C Front Load Series:

Product Overview: STD-4C Surface Mount Series:

Product Line Features:
- USPS Approved and Postal Certified for US Mail Delivery
- Front Loading Horizontal Type
- Tenant Locks and 3 Keys per Door Included in Prices
- New 4C Series High Security (Mandatory & Required for New Construction & Major Renovation Wall Mount Installs)
- USPS Approved and Postal Certified for All Wall Mount Installations
- 4C Wall Mount Horizontal Type: Both Recessed In-Wall Mount Style and Surface Wall Mount Style are Available (Optional Surface Mount Collars Sold Separately for Surface Wall Mounting Applications)
- Constructed and Manufactured of Heavy Duty Aluminum and Stainless Steel for Extended Life
- Tenant Locks and Keys Included (3-Keys per Door or Lock are Included)
- For Installing Multiple Units 4C Connector Kits are Included Allowing for Fast, Easy & Secure Installation
- Wide Selection of Special Protective and Attractive Powder Coated Finish Colors to Choose From
- Includes Self-Adhesive Aluminum Number Plates for Door Identification (Custom Engraved Numbering also Available)
- FREE Shipping/Freight (Via Truck) Promotional This Month – Expires Month End
- Learn more about 4C Horizontal Mailboxes
PLEASE NOTE: New 4C Horizontal Mailboxes are USPS Approved & Postal Certified and are Now Mandatory for All New Construction and Major Renovation Wall-Mount Installations According to the U.S Postal Service (If for USPS Use/Access-Direct US Mail Delivery) New Postal Requirement-Regulation
Additional Information:
- 4C Horizontal Mailboxes – USPS Approved and STD-4C Compliant
- Choosing Centralized Mailboxes that Comply with the US Postal Service Regulations
- Accessibility Installation References and ADA Requirements
- Shop all Commercial Mailboxes from National Mailboxes
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?