Established in 1998, U.S. Post Company is a leading manufacturer and distributor of quality commercial mailboxes and residential mailboxes, mailbox posts, street signs, and lighting. U.S. Post prides itself on its manufacturing quality along with excellent customer service. Each product is constructed with care and built to last. All products are DOT certified. Each is installed based on local postmaster standards in keeping with local development requirements. We sell commercial mailbox brands Florence and Slasbury, including cluster box units (CBUs), 4C front-load and 4C depot mailboxes, horiztonal (1400, 1600, 1700 series) and vertical (1250 series) mailboxes. We sell residential mailbox brands Gaines, Salsbury, Qualarc and our own.