---
product_id: 228694105
title: "ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved."
brand: "architectural mailboxes"
price: "KD 134.54"
currency: KWD
in_stock: true
reviews_count: 5
category: "Architectural Mailboxes"
url: https://www.desertcart.com.kw/products/228694105-architectural-mailboxes-950020b-10-centennial-black-mailbox-post-mount-xl
store_origin: KW
region: Kuwait
---

# 2176 cu in capacity Magnetic door closure Galvanized steel + powder coat ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved.

**Brand:** architectural mailboxes
**Price:** KD 134.54
**Availability:** ✅ In Stock

## Summary

> 📬 Elevate your curb appeal with the mailbox that means business.

## Quick Answers

- **What is this?** ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. by architectural mailboxes
- **How much does it cost?** KD 134.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/228694105-architectural-mailboxes-950020b-10-centennial-black-mailbox-post-mount-xl)

## 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

- • **Secure & Sleek Closure:** Magnetic door keeps your mail firmly protected with effortless access.
- • **Versatile Post Mounting:** Predrilled for easy installation on existing posts or upgrade with adapter plate for wood posts.
- • **Parcel-Ready XL Capacity:** Fits USPS large flat rate boxes plus extra mail—never miss a delivery again.
- • **USPS Standard 7C Approved:** Meets the latest postal regulations for peace of mind and hassle-free deliveries.
- • **Built to Brave the Elements:** Heavy gauge galvanized steel with rust-resistant powder coating ensures lasting durability.

## Overview

The ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount is a USPS-approved, extra-large mailbox designed to accommodate modern parcel demands. Crafted from heavy gauge galvanized steel with a rust-resistant powder coat finish, it features a magnetic door closure for secure mail protection. Its spacious 2176 cubic inch interior fits large flat rate boxes and additional parcels, combining durability, compliance, and style for the discerning homeowner.

## Description

The Centennial Mailbox by Architectural Mailboxes is the first design to receive United States Postal Service approval against the new USPS Standard 7C regulation, released in late 2015. Named Centennial, it represents the next generation of mailbox size, since the last traditional size was introduced over 100 years ago in 1915. Meeting the needs of today's consumer, its ample mailbox compartment is designed to receive not only mail and magazines but multiple parcels. This means no more missed deliveries or parcels left out on the porch exposed to weather and thieves. Made with quality construction and heavy gauge materials complete with a die cast aluminum handle and rigid, powder coated steel flag. This attractive design combines aesthetics and functionality servicing all your mail and parcel needs.

Review: Well made. - Very happy with the mailbox. It’s packaged very well so no damage upon receiving . Ordered two prior to this one from another company both were damaged when I got them. It’s plenty large. I don’t think you would need anything larger.
Review: Package perfect! - This box is no joke. It’s way bigger than your standard mailbox. It’s sturdy and classy and doesn’t look oversized when driving by. It perfectly fits lots of mail and is very solid. I don’t recommend attaching it to a standard wood post. We fancied ours up with some nice stone and it looks amazing!

## Features

- Larger inner compartment can accept a USPS priority mail large flat rate box 12 in. x 12 in. x 5.5 in. and still has room for additional mail and parcels
- Heavy gauge galvanized steel body equipped with stainless steel door pins then fully powder coated for corrosion resistance
- Sleek magnetic door closure provides reliability all while keeping door firmly closed
- Predrilled 4 in. x 10 in. hole pattern in floor allows for mounting to existing post (installation hardware not included)
- Order Architectural Mailboxes adapter plate 7540B for 4 x 4 wood post installation
- Overall dimensions: 14 in. W x 12 in. H x 18.3 in. D
- Approved by the US postmaster general
- Works with Architectural Mailboxes post models 5526, 5525, 7516, and 7507

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078H74L7T |
| Access Location | Front |
| Best Sellers Rank | 911,675 in DIY & Tools ( See Top 100 in DIY & Tools ) 10 in Multi-Family Letterboxes |
| Brand | ARCHITECTURAL MAILBOXES |
| Brand Name | ARCHITECTURAL MAILBOXES |
| Capacity | 2176 cubic inches |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 1,349 Reviews |
| Global Trade Identification Number | 00832794007022 |
| Included Components | Centennial mailbox |
| Included security features | No additional security features |
| Item Dimensions D x W x H | 46.5D x 36.1W x 30.2H centimetres |
| Item Type Name | Post Mount |
| Manufacturer | ARCHITECTURAL MAILBOXES |
| Manufacturer Part Number | 950020B-10 |
| Material | Metal |
| Material Type | Metal |
| Model Number | 950020B-10 |
| Mounting Type | Post Mount |
| Mounting type | Post Mount |
| Product dimensions | 46.5D x 36.1W x 30.2H centimetres |
| Security Features | No additional security features |
| Style Name | Contemporary |
| UPC | 832794007022 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** ARCHITECTURAL MAILBOXES
- **Colour:** Black
- **Included security features:** No additional security features
- **Material:** Metal
- **Mounting type:** Post Mount

## Images

![ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. - Image 1](https://m.media-amazon.com/images/I/61XaWCkpIHL.jpg)
![ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. - Image 2](https://m.media-amazon.com/images/I/71tq48vsamL.jpg)
![ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. - Image 3](https://m.media-amazon.com/images/I/71QQMC7wK-L.jpg)
![ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. - Image 4](https://m.media-amazon.com/images/I/815FxmOJ6RL.jpg)
![ARCHITECTURAL MAILBOXES 950020B-10 Centennial Black Mailbox Post Mount, XL | Galvanized steel build for outside with rust-resistant powder-coat finish and a magnetic door closure. USPS approved. - Image 5](https://m.media-amazon.com/images/I/61P54aPyUnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made.
*by K***N on 26 October 2023*

Very happy with the mailbox. It’s packaged very well so no damage upon receiving . Ordered two prior to this one from another company both were damaged when I got them. It’s plenty large. I don’t think you would need anything larger.

### ⭐⭐⭐⭐⭐ Package perfect!
*by H***H on 29 July 2022*

This box is no joke. It’s way bigger than your standard mailbox. It’s sturdy and classy and doesn’t look oversized when driving by. It perfectly fits lots of mail and is very solid. I don’t recommend attaching it to a standard wood post. We fancied ours up with some nice stone and it looks amazing!

### ⭐⭐⭐⭐⭐ Boîte aux lettres solide !!
*by N***L on 4 November 2025*

Magnifique boîte au lettres Quand même assez solide et facile d'installation Beaucoup d'espace pour les colis Porte aimanté qui empêche l'ouverture durant les vents fort....j'aime bien Je recommande !!

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.com.kw/products/228694105-architectural-mailboxes-950020b-10-centennial-black-mailbox-post-mount-xl](https://www.desertcart.com.kw/products/228694105-architectural-mailboxes-950020b-10-centennial-black-mailbox-post-mount-xl)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-09-23*