Please note: This product in Rubbed Bronze color is currently on backorder from the manufacturer. We estimate it will be available to ship on or after 06/02/2026. If you'd like to purchase today, we will hold your order until the product is ready to ship.
Please see the Color Chart to compare available Mailbox finishes with available Post finishes (for example, Rubbed Bronze and Graphite Bronze are quite different).
The lead times listed on this product page represent the best-case scenario for shipping estimates. While we may show that a product "usually ships" within a given period, this period should not be confused with a delivery estimate. Rather, we expect the product to ship from the manufacturer's warehouse within this timeframe.
What does this mean for you? Once you place an order on our site, we begin processing the order with the manufacturer. The processing lead time we list on the product page is the most current estimate from the manufacturer regarding the product.
If you purchase a commercial mailbox from us and decide to cancel because a competitor lists a "faster" lead time on their site, you may be delaying the time it will take to receive your mailboxes.
Why? Because you are placing a new order with the same manufacturer for processing.
Below, we answer our customers' top three FAQs regarding delivery estimates.
When you order a commercial or cluster mailbox, we process the order with the manufacturer within one business day. Once processed, the order usually ships in the time frame listed on the product page. Since Cluster Mailboxes are large items, they ship via freight carriers. As such, these transit times will usually take 5 to 7 business days.
A few things to note about purchasing a cluster mailbox or similar large, commercial-grade product:
If you order multiple products, you may be purchasing products from different manufacturers. If this is the case, your products will ship to you separately from each manufacturer.
For example, if you purchase a set of wedge anchor bolts with a cluster mailbox, your CBU will ship from Florence or Salsbury's warehouse in about 5-7 business days. Still, your anchor bolts will ship separately from another warehouse in about 1 to 3 business days.
Depending on the carrier and your location, transit times will vary. You can estimate delivery times using your carrier tracking number. Once your order ships, we'll send you a shipping confirmation email that includes your carrier (FedEx, UPS, YRC, etc.) and tracking number.
If you place an order with us and do not receive an Order Confirmation email, check your spam inbox. If you still do not see an Order Confirmation email in your inbox, contact us immediately at (866) 685-7873 . We will provide you with your Order Number and any other details you need.
The Centennial Post Mount Mailbox and Premium Steel Post Combination offers an elegant all-in-one solution for receiving large volumes of mail and packages while enhancing your home’s curb appeal. Crafted from heavy-gauge galvanized steel and fully powder coated for superior corrosion resistance, this mailbox delivers exceptional durability and a sleek, modern appearance.
Designed to meet USPS Standard 7C regulations, the Centennial easily accommodates a USPS Priority Mail Large Flat Rate Box (12" x 12" x 5.5") with additional space for more mail and parcels. The kit includes a premium 19-gauge in-ground post with a decorative ABS cover that conceals mounting hardware and concrete work, providing a clean and finished look.
Key Features:
Discover the Centennial Post Mount Mailbox and Premium Steel Post Combination in this 360° product video, showcasing its elegant design, exceptional durability, and all-in-one convenience. Crafted from heavy-gauge galvanized steel and fully powder coated for superior corrosion resistance, it delivers lasting strength and a sleek, modern appearance. Designed to meet USPS Standard 7C regulations, the spacious interior easily fits a USPS Priority Mail Large Flat Rate Box (12" x 12" x 5.5") with room for additional mail and small packages. The included premium 19-gauge in-ground post features a decorative ABS cover that conceals mounting hardware and concrete work for a clean, professional look—making the Centennial Mailbox and Post Kit the perfect blend of functionality, durability, and curb appeal.
| Weight | 21.69 lbs |
|---|---|
| Warranty | 5 Year Limited |
| Shipping Info | Usually ships in 1-3 business days Learn more about our Estimated Lead Times |
| Brand | Architectural Mailboxes |
| Mailbox Style | Traditional |
| Mount Type | Post Mount |
| Material | Galvanized Steel |
| Mailbox Type | Mailbox & Post Combo |
| Dimensions | 64" H x 14.3" W x 18.3" D |
| Security | Non-locking |
| Included Accessories | Includes Post |
| Delivery Type | USPS Delivery |
| Access Type | Front Access |
| Size | Extra Large |
