---
product_id: 630126141
title: "adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside"
brand: "adoorn"
price: "¥49540"
currency: JPY
in_stock: true
reviews_count: 8
category: "Adoorn"
url: https://www.desertcart.jp/products/630126141-adoorn-lockable-post-mount-mailbox-small-curb-yellow-size-12
store_origin: JP
region: Japan
---

# 12x12x18.5 inches compact size Anti-theft lock with 2 keys Weatherproof galvanized steel adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside

**Brand:** adoorn
**Price:** ¥49540
**Availability:** ✅ In Stock

## Summary

> 📬 Lock in style and security—because your mail deserves the VIP treatment!

## Quick Answers

- **What is this?** adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside by adoorn
- **How much does it cost?** ¥49540 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/630126141-adoorn-lockable-post-mount-mailbox-small-curb-yellow-size-12)

## Best For

- adoorn enthusiasts

## Why This Product

- Trusted adoorn brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Brave the Elements:** Heavy-gauge galvanized steel with rust-proof finish protects your mail rain or shine.
- • **Bold & Bright for Easy Spotting:** Vibrant curb yellow with a classic red flag ensures your mailbox stands out.
- • **Fits Your Life, Not Just Your Mail:** Spacious enough for 2-3 days of mail including poly-bag packages up to 16”x10”x2”.
- • **Secure Your Mail, Secure Your Peace:** Robust anti-pry latch and anti-phishing panel keep porch pirates at bay.
- • **Effortless Installation, Instant Upgrade:** Five-hole pattern fits most posts for quick mounting and curb appeal boost.

## Overview

The adoorn Lockable Post Mount Mailbox is a modern, weatherproof mailbox measuring 12x12x18.5 inches, designed to securely hold 2-3 days of mail including small packages. Constructed from heavy-gauge galvanized steel with rust-proof finish, it features an anti-theft lock with two keys, an anti-pry latch, and an anti-phishing panel. Easy to install on most posts with five mounting hole patterns, it comes in a vibrant curb yellow with a red flag for enhanced curb appeal and visibility.

## Description

desertcart.com: adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside : Tools & Home Improvement

Review: Secure, Well-Built Mailbox with Easy Installation - This lockable post-mount mailbox is great quality and feels solid and secure. Installation was straightforward with no issues, and everything fit as expected. The anti-theft locking feature works well, and the mailbox has plenty of space for daily mail. A small but appreciated detail is that the flag stays up properly without falling over. Overall, a reliable and well-designed mailbox that does exactly what it’s supposed to do.
Review: Mailbox vs mail slot - Very good product for outdoor installations. Product provides great visibility in night for finding address. Adds a modern, simple, and elegant finish. Easy to install and very good quality.

## Features

- Size 12 x 12 x 18.5": (HxWxD) locking mailbox holds 2-3 days of mail. Easily accessed by mail carriers and delivery drivers, our post mount mailboxes for outside receive small and large envelopes, poly-bag style mailers and packages up to 16” x 10” x 2”.
- Receive What You Buy: Prevent identity, mail and package theft. Stop porch pirates with our locking mail boxes for house outside. This post mounted mailbox features an anti-phishing panel and anti-pry latch. Keep out sticky fingers with Adoorn’s mail box.
- Easy to Mount: Combine Adoorn’s residential mailboxes for outside with our adoorn post for mailbox (sold separately) or use your existing post. This mailbox has five different hole patterns to accommodate most posts (Not compatible with the post called “Mail Boss 7121” which desertcart’s algorithm continues to incorrectly recommend..uggg!). Our outside mailboxes can be installed quickly and easily.
- Instantly Add Curb Appeal: Adoorn's outdoor mailboxes are designed to compliment home decor. This yellow mailbox includes a bright red mail flag for added charm. Our modern mailbox comes in a range of eye-catching colors.
- Durable and Weatherproof: Our locking mailboxes are constructed from heavy-duty galvanized steel, stainless steel hinges and rust proof finish. This metal mailbox protects from rain and snow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CVWTZYPJ |
| Access Location | Front |
| Best Sellers Rank | #18,001 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Post-Mount Mailboxes |
| Brand | adoorn |
| Color | Yellow |
| Customer Reviews | 4.2 4.2 out of 5 stars (397) |
| Date First Available | February 19, 2024 |
| Included Security Features | Lockable |
| Item Weight | 15.82 pounds |
| Item model number | DSPOST-SMALL |
| Material | Heavy-Gauge Galvanized Powder-Coated Steel |
| Mounting Type | Post Mount |
| Product Dimensions | 18.5"D x 12"W x 12"H |
| Style | Modern |
| UPC | 850046544668 |

## Product Details

- **Brand:** adoorn
- **Color:** Yellow
- **Included Security Features:** Lockable
- **Material:** Heavy-Gauge Galvanized Powder-Coated Steel
- **Mounting Type:** Post Mount

## Images

![adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside - Image 1](https://m.media-amazon.com/images/I/61AR8crTB+L.jpg)
![adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside - Image 2](https://m.media-amazon.com/images/I/9158oR769BL.jpg)
![adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside - Image 3](https://m.media-amazon.com/images/I/61Skex5+rPL.jpg)
![adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside - Image 4](https://m.media-amazon.com/images/I/71txMs1Zn0L.jpg)
![adoorn Lockable Post Mount Mailbox | Small (Curb Yellow), Size 12 x 12 x 18.5 (HxWxD) Anti-Theft Locking Mailbox with 2 Keys, Modern Mailbox with Flag, Weatherproof Mailboxes for Outside - Image 5](https://m.media-amazon.com/images/I/81P2Z2dMI8L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Should I buy a small or large size post mount mailbox?**
A: The adoorn Post Mount | Small holds 2-3 days of mail while the Large holds 7-14 days of mail. The Small works great if you don't let your mail sit in the mailbox for more than a couple days at a time. If you travel, you should go with the large.

**Q: How does it work?**
A: It works like the big blue USPS boxes. 1. Mail person simply opens the top door and places mail inside. 2. When the door shuts, mail falls into the secure location. 3. Retrieve your mail by using your key at your convenience.

**Q: Does this mailbox meet USPS requirements?**
A: Yes! Our mailboxes abide by and follow all USPS regulations. Our installation instructions include guidelines for height and set back requirements at your curb.

**Q: Why Locking? Do I really need it?**
A: Theft is a large and growing problem for the USPS. Research shows 75% of people in the USA have had mail or package stolen in the last year (119 million). adoorn mailboxes are designed to protect against identity, mail & package theft.

**Q: How do I install the post mount mailbox?**
A: It’s simple! Our mailboxes are shipped fully assembled and ready to mount. We recommend purchasing one of our sturdy adoorn mounting posts for the best experience. Installation hardware and easy-to-follow instructions are included with the product.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Secure, Well-Built Mailbox with Easy Installation
*by M***L on January 30, 2026*

This lockable post-mount mailbox is great quality and feels solid and secure. Installation was straightforward with no issues, and everything fit as expected. The anti-theft locking feature works well, and the mailbox has plenty of space for daily mail. A small but appreciated detail is that the flag stays up properly without falling over. Overall, a reliable and well-designed mailbox that does exactly what it’s supposed to do.

### ⭐⭐⭐⭐⭐ Mailbox vs mail slot
*by A***R on March 14, 2026*

Very good product for outdoor installations. Product provides great visibility in night for finding address. Adds a modern, simple, and elegant finish. Easy to install and very good quality.

### ⭐⭐⭐⭐⭐ Love it!
*by S***N on February 10, 2026*

Looks great! Works great! Very happy! The color is unique and matches our roof. Would recommend. Good security.

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**Shop now:** [https://www.desertcart.jp/products/630126141-adoorn-lockable-post-mount-mailbox-small-curb-yellow-size-12](https://www.desertcart.jp/products/630126141-adoorn-lockable-post-mount-mailbox-small-curb-yellow-size-12)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-04-22*