STD-4C Mailboxes & Parcel Lockers

The versatile™ 4C mailbox suites offer 12 different heights with over 140 pre-configured individual modules, plus the ability to configure any base module to fit your specific project needs.

Suite heights provide greater flexibility in ensuring your mailbox installation remains compliant with necessary regulations. The Max Height Suite for instance, is designed to ensure a maximum number of USPS compliant tenant compartments are available within the allowed space; while the ADA Max Height Suite ensures a maximum number of compliant tenant compartments to completely meet both Fair Housing ADA installation requirements and Postal requirements.

Versatility is the key to good design when planning for single or multifamily residential or commercial projects 135 preconfigured designs plus customizable configurations make it easy to design a centralized mail area just right for your project USPS Approved and ADA Compliant designs are critical components of a functional mail room.

Online resources provide a design configurator, BIM models and specifications easily accessible for download into your project plans. Secure solutions for mail and package delivery are important to residents. Florence Dealers provide turnkey solutions, integrating USPS Approved STD-4C Mailbox Suites into your next project.

Installation Alternatives


Recessed Mount

The most common way to install the 4C modules is into a wall. Florence makes installation easy by providing a Multi-Unit Connector Kit (MUCK) for each specified module. The MUCK eliminates the need for studs and pulls the units together tightly, reducing any potential gaps between modules.

Surface Mount

Single or double-wide 4C modules can be installed flush on a wall when utilizing the surface-mount collar option. This installation alternative is ideal for settings with limited wall depth. The collar is easy to assemble with a slotted back which is designed for ease of installation. The collars are all aluminum construction in rugged, weather-resistant powder coat finishes and can be used indoors or out.

Pedestal Mount

Mounting a USPS Approved 4C module on a pedestal is not a Postal approved installation alternative, but is an excellent solution for any private delivery application. Pedestals are designed to ensure the selected module is installed at a standard accessible height.

View Products By Height


15 High

14 High

13 High

12 High

11 High

10 High

9 High

8 High

7 High

6 High

Standard Features

  • Rugged, weather-resistant powder coat finish resists scratching and vandalism
  • Constructed of heavy gauge aluminum and 300 series stainless steel components for superior strength, corrosion resistance and outdoor durability
  • Solid aluminum mail slot frame design protects adjacent customer compartment and collection compartment
  • Unique double-locking parcel locking mechanism design for added mail package security
  • USPS-1172 910A lock with three (3) keys

Have Questions or Need Help Figuring Out The Right Mailbox Configuration?

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