Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox XL – Black

Built to endure year‑round curbside use

The Centennial Postmount Mailbox combines rugged durability with practical design, built from galvanized steel and finished with a protective black powder coating. This weatherproof silhouette stands up to rain, snow, and sun, helping you protect mail and packages from the elements.

Designed for busy homes and property sets, its extra‑large interior provides ample space for multiple large deliveries alongside routine mail, making daily routines smoother and fewer trips to the curb. The unit is USPS Post Master General approved, ensuring compatibility with standard curbside delivery while keeping contents secure and accessible for you and your carriers.

Key benefits

• Weather tough, year‑round design built from galvanized steel to resist rain, snow, and sun
• Rust‑resistant from top to bottom with a durable black powder‑coat finish
• Generous interior space for multiple large deliveries in addition to mail
• USPS Post Master General approved for smooth curbside service
• Quick, tool‑free installation: fully assembled and ready to mount on compatible posts
• Post “F” compatibility for easy mounting on compatible Architectural Mailboxes posts
• Secure magnetic closure to keep contents protected from wind and rain
• Designed in the USA with durability, function, and curb appeal in mind

Installation and practical use

• Fully assembled and ready to mount, saving setup time in busy households
• Mounting hardware is included with compatible Architectural Mailboxes posts marked F (not included with the mailbox)
• Simple, reliable curbside performance designed to work with matching posts for a cohesive exterior look

In real-world use, this mailbox can serve as a dependable drop‑off point for parcels and mail alike, with a finish that resists tarnish and a lid that closes with a reassuring magnetic click. While it does not promise specific outcomes, the design prioritizes protection, accessibility, and consistent carrier service, helping you manage deliveries with greater ease.

Designed in the USA

Architectural Mailboxes brings a product crafted to meet practical needs, combining form and function to suit a variety of curbside environments while maintaining a clean, understated aesthetic.