4C Horizontal Mailboxes

Complete 4C mailbox information from Postal Products Unlimited, Inc. We're the first to manufacture the USPS approved 4C Mailboxes! 4C Mailboxes - Primary Uses: Apartment Complexes Commercial Buildings Multi-family Homes Condominiums Recommended for Indoor Use Only - Click here to purchase CBU Outdoor Mailboxes. High Security 4C Mailboxes built for safe mail delivery. No competitor can match how we manufacture our 4C mailboxes - our 4C mailbox is built with vault-level security.   Description Product # Price 3-Door 4C Horizontal Mailbox N1027860 $395.00 4-Door 4C Horizontal Mailbox N1027861 $415.00 5-Door 4C Horizontal Mailbox N1027862 $475.00 7-Door 4C Horizontal Mailbox N1027863 $495.00 8-Door 4C Horizontal Mailbox N1027865 $635.00 9-Door 4C Horizontal Mailbox N1027864 $575.00 16-Door 4C Horizontal Mailbox N1027866 $975.00 15" 4C Horizontal Parcel Locker N1027867 $250.00 18" 4C Horizontal Parcel Locker N1027868 $275.00 Previous Page

Click here to learn about our 4C Mailbox manufacturing process.

In cooperation with the USPS and a National Consensus Committee, we have designed the 4C mailboxes to meet today's consumer mailing habits, with unmatched 4C mailbox manufacturing processes designed to provide increased security.

We’ll help you create a custom 3 part 4C mailbox spec – call us 1.800.229.4500 or view our printable pdf with valuable 4C mailbox information.

New Postal Standard for 4C mailbox design specification is effective. As of October 6, 2006, the 4C mailboxes are mandatory on any new construction projects. Please call us for assistance with drawings or choosing the appropriate 4C horizontal mailbox for future projects. CAD drawings for 4C mailboxes are available upon request.

Need more 4C mailbox information? Check out our Architect Center for more information about our mailboxes. We offer a wide selection of different CAD programs to assist you in specifying our 4C mailboxes...don’t specify decertified equipment! Spec the 4C horizontal mailbox or the USPS will not deliver the mail!