Side mount your Architectural Mailboxes box on the Architectural Mailboxes Decorative In Ground Post. This all aluminum decorative post is perfect for any Architectural Mailboxes or other standard post mount mailbox, and with a matching powder coated support arm. About Architectural Mailboxes Based in California, Architectural Mailboxes is the net result of two dedicated designers putting their heads together to create a superior product. Vanessa Taylor and Chris Farentinos are in charge, creating high quality USPS approved mailboxes with curb appeal that matches their functionality. You'll find top notch materials, unique colors and finishes, and both traditional and new designs. All aluminum mailbox post for side mount boxes. For Oasis Jr., Coronado, and Bellevue mailboxes. Durable powder coated finish in neutral colors. Includes all mounting hardware and instructions. Dimensions: 24.4L x 4.4D x 80.3H inches.