Florence 4C mailboxes are USPS Approved and meet or exceed STD-4C requirements for new construction and major renovations. They are also ideal for private delivery applications. With numerous pre-configured 4C modules available, be sure to refer to USPS Approval guidance in product details below when selecting pre-configured 4C mailboxes for your project.

https://mailboxemporium.com/sh....op/versatile-4c15d-1

Aluminum rack ladder system drop boxes for Private Access.
Ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications.
Units are 23-1/4″ W x 12-1/8″ H x 15-1/2″ D.
Available in 1 door (22″ W x 11-1/2″ H) or 2 door (10-3/4″ x 11-1/2 H) configurations.
Compartments are constructed of 20 gauge steel.

https://mailboxemporium.com/sh....op/aluminum-drop-box

Heavy gauge aluminum construction with stainless steel components for superior strength, corrosion resistance and exceptional outdoor durability. A weather resistant powdercoat finish resists scratching and vandalism and is available in eight color choices.

https://mailboxemporium.com/sh....op/versatile-4c16d-1