--- product_id: 69119540 title: "Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox, XL, Black" brand: "architectural mailboxes" price: "5696 kr" currency: NOK in_stock: true reviews_count: 13 category: "Architectural Mailboxes" url: https://www.desertcart.no/products/69119540-architectural-mailboxes-950020b-10-centennial-postmount-mailbox-xl-black store_origin: NO region: Norway --- # 2176 cu in capacity Secure magnetic door closure Powder-coated galvanized steel Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox, XL, Black **Brand:** architectural mailboxes **Price:** 5696 kr **Availability:** βœ… In Stock ## Summary > πŸ“¬ Elevate your curbside game with the Centennial XL – where durability meets delivery dreams! ## Quick Answers - **What is this?** Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox, XL, Black by architectural mailboxes - **How much does it cost?** 5696 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/69119540-architectural-mailboxes-950020b-10-centennial-postmount-mailbox-xl-black) ## Best For - architectural mailboxes enthusiasts ## Why This Product - Trusted architectural mailboxes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Durable galvanized steel with rust-resistant powder coat ensures weatherproof longevity. - β€’ **USPS Certified:** Officially USPS Postmaster General approved for seamless curbside mail delivery. - β€’ **Secure & Stylish:** Powerful magnetic closure and sleek black finish protect your mail while elevating curb appeal. - β€’ **Effortless Installation:** Comes fully assembled and mounts quickly on all 'F' marked Architectural Mailbox posts. - β€’ **Oversized Package Ready:** Spacious 2176 cubic inches interior fits multiple large deliveries with ease. ## Overview The Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox is a USPS-approved, extra-large, powder-coated galvanized steel mailbox designed for high-volume mail and oversized packages. Featuring a spacious 2176 cubic inch interior, secure magnetic door closure, and compatibility with 'F' marked posts, it offers professional-grade durability and style for modern homes demanding reliable curbside delivery solutions. ## Description The Centennial is an extra large mailbox built for high-volume mail and oversized packages. It is USPS approved and features the T4 interior size, the largest standard mail carrier opening available. This model has been featured in the USPS Postal Bulletin for nearly a decade. Whether you need mailboxes for outside, a durable mail box for your house, or a heavy-duty outdoor mailbox that holds up in the elements, the Centennial is built for it. Constructed from powder-coated steel with a bold steel flag and cast aluminum handle, this post mounted mailbox is made to last. A spacious interior and solid construction make it a dependable choice for residential mailboxes and high-delivery households. If you need a large curbside mailbox with room for everything that lands at your door, the Centennial delivers. Review: This mailbox is the best box hands down! (Coming from a postman) - This review is coming from your friendly neighborhood postman. I deal with literally every type of mailbox on the market. I originally went went with this style do to the quality of construction and larger package holding capacity. Beat up, small, broken flimsy boxes are a irritation of mine. My route doesnt include my own mailbox but I work with my mail lady and wanted to give her the same love I get from a few of my own customers. And I am so glad I did. First, over all materials are top of the line. The shell is made from thick steel and the paint job is perfect. What I wasnt expecting was some of the smaller details that will make this mailbox last pretty much forever. On my old box, which was only 8 years old maybe, the plastic flag and the magnet had both broken off this past year. The flag being plastic and the magnet housing, plastic as well. The plastic pins where the door pivots broke apart last year. None of that is going to happen with this mailbox. The flag is made of the same thick metal and strong. Its attached to a bracket with a rivet. That bracket is attached to the box with Nyloc nuts. These nuts will never loosen or back out. The pins on the door, are attached with pins that area held in with cotter pins. There is ZERO chance over the lifetime of this mailbox, that I will have to worry or replace either. The magnet, which is very powerful, is welded in place. There is no plastic at all on this entire mailbox. The only way this will ever fail is if the magnet loses its magnetism. Coming from a person whos job it is to deal with mailboxes, I am blown away at how much better this mailbox is then I was expecting it to be. You can go to a box store and buy a cheap box for $40 or you can spend $70 on this box and never have to worry about fixing it again. PLUS your mail carrier will absolutely love you! PLUS if you get a lot of packages, this box will fit a good portion of them. The people on my route who have this box, I am way more willing to do a little extra for because they are doing an little extra for me. Possible Cons: With the door being made of the thicker metal, it is a touch more heavy then your normal stamped mailbox door. This isnt a bad thing but as a mailman, I know I at least, tend to pop the doors open and let them fall as I am grabbing mail. The metal should be strong enough to hold up regardless but it would be an end all feature if the door had just the slightest amount of resistance to keep it from flopping open so hard. Second, you are going to want to make sure you have a solid enough post to attach this box to. Im going with a 6x6 post, concreted into the ground. You could get away with a 4x4 post but you are going to need to use concrete for sure and remember you are going to need 18-24 inches of the post in the ground. Then make sure you attach the box just as solid to the post as the post is to the ground. DO NOT use those dumb 2x2 metal post sets you can get at the box store. Even on the lightest of mailboxes they dont work. It most certainly will not work for this box. I am going to use 3/4 inch ply wood to fill the bottom of the underneath of the box and then attach that to a longer piece of 2x6 to bring it out a touch from the post to the road to be within the 8 to 10 inch spec. Review: Nicely made and very attractive - I got this box 'cause my rural mailman kept jamming boxes into my already oversized mailbox. The last package I had to use a box cutter to remove! This one is really well made; it has a powder coated paint finish that's attractive and looks like it will last. The door is solid and well hinged--the magnet that holds it closed is great. Defiantly a step up from my last box. It's plenty wide and high enough to hold most packages I get. There is one thing I didn't consider however--it's not as deep as my last box. It's only 16" deep while my neighbor's standard box is 18" deep. My prior oversize box was 20" deep. I don't know why they made them that short, but I'm pleased enough overall with the product that I'm keeping it. I do miss the back door my old one had though. . . . ## Features - Built for Big Deliveries: This extra large mailbox offers oversized space for multiple large packages, plus all your other curbside mailbox deliveries. - USPS Post Master General Approved: Mailbox is USPS approved, as required for all curbside delivery by U.S. Mail carriers - for smooth, uninterrupted service. - Install in Minutes: Fully assembled & ready to mount. Just note: mounting hardware comes with all Architectural Mailboxes' compatible posts, not the mail box. - Post "F" Compatible: Made to mount effortlessly on all Architectural Mailboxes posts marked with letter F. - Secure Magnetic Closure: Keeps mail box door tightly shut to protect your curbside mailbox deliveries from wind and rain. - Designed in the USA: Thoughtfully engineered in the United States with a focus on durability, function, and style. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078H74L7T | | Access Location | Front | | Best Sellers Rank | #12,661 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Post-Mount Mailboxes | | Brand | ARCHITECTURAL MAILBOXES | | Brand Name | ARCHITECTURAL MAILBOXES | | Capacity | 2176 cubic inches | | Color | Black | | Customer Reviews | 4.7 out of 5 stars 3,274 Reviews | | Global Trade Identification Number | 00832794007022 | | Included Components | Instructions | | Included Security Features | No additional security features | | Item Dimensions D x W x H | 18.3"D x 14.2"W x 11.9"H | | Item Highlight | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. | | Item Type Name | Post Mount | | Item Weight | 11.2 pounds | | Manufacturer | Architectural Mailboxes | | Manufacturer Part Number | 950020B-10 | | Manufacturer Warranty Description | 1 year limited lifetime warranty. | | Material | Metal | | Material Type | Metal | | Model Number | 950020B-10 | | Mounting Type | Post Mount | | Number of Items | 1 | | Number of Packs | 1 | | Product Dimensions | 18.3"D x 14.2"W x 11.9"H | | Security Features | No additional security features | | Style Name | Contemporary | | UPC | 832794007022 | | Unit Count | 1 Count | ## Product Details - **Material:** Metal - **Color:** Black - **Included Security Features:** No additional security features - **Brand:** ARCHITECTURAL MAILBOXES - **Mounting Type:** Post Mount ## Images ![Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox, XL, Black - Image 1](https://m.media-amazon.com/images/I/61XaWCkpIHL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This mailbox is the best box hands down! (Coming from a postman) *by D***. on February 10, 2026* This review is coming from your friendly neighborhood postman. I deal with literally every type of mailbox on the market. I originally went went with this style do to the quality of construction and larger package holding capacity. Beat up, small, broken flimsy boxes are a irritation of mine. My route doesnt include my own mailbox but I work with my mail lady and wanted to give her the same love I get from a few of my own customers. And I am so glad I did. First, over all materials are top of the line. The shell is made from thick steel and the paint job is perfect. What I wasnt expecting was some of the smaller details that will make this mailbox last pretty much forever. On my old box, which was only 8 years old maybe, the plastic flag and the magnet had both broken off this past year. The flag being plastic and the magnet housing, plastic as well. The plastic pins where the door pivots broke apart last year. None of that is going to happen with this mailbox. The flag is made of the same thick metal and strong. Its attached to a bracket with a rivet. That bracket is attached to the box with Nyloc nuts. These nuts will never loosen or back out. The pins on the door, are attached with pins that area held in with cotter pins. There is ZERO chance over the lifetime of this mailbox, that I will have to worry or replace either. The magnet, which is very powerful, is welded in place. There is no plastic at all on this entire mailbox. The only way this will ever fail is if the magnet loses its magnetism. Coming from a person whos job it is to deal with mailboxes, I am blown away at how much better this mailbox is then I was expecting it to be. You can go to a box store and buy a cheap box for $40 or you can spend $70 on this box and never have to worry about fixing it again. PLUS your mail carrier will absolutely love you! PLUS if you get a lot of packages, this box will fit a good portion of them. The people on my route who have this box, I am way more willing to do a little extra for because they are doing an little extra for me. Possible Cons: With the door being made of the thicker metal, it is a touch more heavy then your normal stamped mailbox door. This isnt a bad thing but as a mailman, I know I at least, tend to pop the doors open and let them fall as I am grabbing mail. The metal should be strong enough to hold up regardless but it would be an end all feature if the door had just the slightest amount of resistance to keep it from flopping open so hard. Second, you are going to want to make sure you have a solid enough post to attach this box to. Im going with a 6x6 post, concreted into the ground. You could get away with a 4x4 post but you are going to need to use concrete for sure and remember you are going to need 18-24 inches of the post in the ground. Then make sure you attach the box just as solid to the post as the post is to the ground. DO NOT use those dumb 2x2 metal post sets you can get at the box store. Even on the lightest of mailboxes they dont work. It most certainly will not work for this box. I am going to use 3/4 inch ply wood to fill the bottom of the underneath of the box and then attach that to a longer piece of 2x6 to bring it out a touch from the post to the road to be within the 8 to 10 inch spec. ### ⭐⭐⭐⭐⭐ Nicely made and very attractive *by T***R on October 15, 2025* I got this box 'cause my rural mailman kept jamming boxes into my already oversized mailbox. The last package I had to use a box cutter to remove! This one is really well made; it has a powder coated paint finish that's attractive and looks like it will last. The door is solid and well hinged--the magnet that holds it closed is great. Defiantly a step up from my last box. It's plenty wide and high enough to hold most packages I get. There is one thing I didn't consider however--it's not as deep as my last box. It's only 16" deep while my neighbor's standard box is 18" deep. My prior oversize box was 20" deep. I don't know why they made them that short, but I'm pleased enough overall with the product that I'm keeping it. I do miss the back door my old one had though. . . . ### ⭐⭐⭐⭐⭐ Perfect Size *by T***T on August 17, 2025* We needed a new mailbox and after looking around for a while, settled on this one. It has been a good choice. We are going on year two with this mailbox and it still looks new. Spiders do like it, so we have to keep it cleaned out, but I think any box would be like that. It is easy to open but stays closed well. It is clearly well made, with thick metal, and doesn’t seem cheap at all. Our mail person loves the size! This may be my favorite thing too. I’m so glad we bought an extra large mailbox because many of our packages fit right inside. Great value for the money. ## Frequently Bought Together - Architectural Mailboxes 950020B-10 Centennial Postmount Mailbox, XL, Black - Architectural Mailboxes 7516B-10 Pacifica In-Ground Steel Mailbox Post, Alloy Steel, One Size, Black - Reflective Mailbox Numbers Sticker Decal Die Cut Classic Style Vinyl Waterproof Number Self Adhesive 5 Sets (3" x 3 set, 4" x 2 set) for Signs, Door, Cars, Trucks, Home, Business, Address Number --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/69119540-architectural-mailboxes-950020b-10-centennial-postmount-mailbox-xl-black](https://www.desertcart.no/products/69119540-architectural-mailboxes-950020b-10-centennial-postmount-mailbox-xl-black) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*