Recessed Mounted 4C Mailboxes are available in the following heights (click image to filter products by height):

Max Height

15 High

14 High

13 High

12 High

11 High

10 High


9 High

8 High

7 High

6 High

Note: Drawings shown are for your quick reference only. For specific standards, consult local building codes and USPS requirements in your region.

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Collection: STD-4C UNITS


Florence offers the broadest line of front-load USPS Approved STD-4C mailboxes and accessories on the market today with nearly 150 preconfigured modules to choose from and endless options if you wish to customize your solution. Front-loading mailboxes include a Master Loading Door prepared for the USPS Arrow Lock providing easy access to all compartments simultaneously by the carrier.