Adoorn’s Locking Post Mount Mailbox earned Architectural Digest’s top pick, and this piece breaks down its build, sizing, and pricing.
Key Takeaways
- Architectural Digest crowned the Adoorn Locking Post Mount “Best Overall” for its steel build and modern lines.
- An anti-pry lock, USPS approved design, and hidden mail clip keep outgoing mail protected from theft.
- Choose Small for 2-3 days of mail or Large for up to two weeks, starting at $114.99.
- Bundles like the Secure Post Set and Secure Bundle combine the mailbox with posts and package boxes for less.
Why Architectural Digest Named This Mailbox “Best Overall”
When Architectural Digest put together its Spring 2025 roundup of the best mailboxes for curb appeal, the Adoorn Locking Post Mount didn’t just make the list. It took the top spot, named “Best Overall” in the entire lineup.
The recognition came with specifics, not just a badge. AD PRO Directory designer Sarah Storms, founder of Styled by Storms in Maplewood, New Jersey, singled out the mailbox’s “clean contemporary lines without being too modern,” a balance that’s harder to hit than it sounds in a category full of either stark industrial boxes or dated traditional ones. Storms also pointed to the mailbox’s “solid price point” and “sturdy galvanized steel build” as reasons it stood out from the rest of the field.
That’s a meaningful distinction for anyone shopping this category: a design publication with no reason to flatter a mailbox brand picked this specific model, from a named reviewer, for named reasons. It’s the starting point for understanding what the Locking Post Mount actually delivers.
What “Curbside Mail Security” Actually Means
“Secure” is a word a lot of mailboxes use loosely. On the Adoorn Locking Post Mount, it points to a specific set of mechanisms, not just a locked door.
- Anti-pry lock: the mailbox uses an outdoor rated, commercial grade lock cylinder built to resist forced entry, not a light duty cabinet lock repurposed for outdoor use.
- Two keys included: every mailbox ships with 2 keys, so a second household member or a spare can be kept on hand from day one.
- Concealed outgoing mail clip: outgoing mail is held out of sight and out of reach behind the locked compartment, rather than clipped somewhere a passerby could grab it.
- USPS compliant design: the mailbox is engineered to meet USPS requirements for post mount locking mailboxes, so it satisfies postal regulations while still locking.
- Uniquely coded locks: each lock has its own identification code tied to that specific mailbox, and lost keys can be replaced for $11.99 using that code rather than requiring a whole new lock.
Together, these are the mechanics behind the “security” in the mailbox’s name. It’s a lock built to resist tampering, a design that hides outgoing mail rather than exposing it, and a key system that’s replaceable without replacing the box.
Locking Post Mount Mailbox: Small vs Large
The Locking Post Mount comes in two sizes, and the right one comes down to how much mail piles up between trips to the curb.
The Small measures 12″H x 12″L x 18.5″D, weighs 17 lbs, and holds 2 to 3 days of mail. It’s priced at $114.99, down from a regular price of $174.99. This is the size most homes will default to: enough capacity to skip a day here and there without mail spilling out, in a footprint that fits a standard post.
The Large steps up to 15.5″H x 12″W x 18.5″D and 20 lbs, with capacity for 7 to 14 days of mail. That’s built for households that travel, or that simply don’t want to think about the mailbox for a week or two at a stretch. Adoorn’s regular pricing for the post mount line sits at the same $174.99 tier as the Small, though a specific current sale price for the Large wasn’t confirmed at the time of this research, so it’s worth checking the live price before comparing the two side by side.
| Specification | Small | Large |
| Dimensions | 12″H x 12″L x 18.5″D | 15.5″H x 12″W x 18.5″D |
| Weight | 17 lbs | 20 lbs |
| Mail capacity | 2 to 3 days | 7 to 14 days |
| Price | $114.99 (from $174.99) | Regular price at the $174.99 tier; current sale price to be confirmed |
If mail tends to build up while you’re away, or if daily retrieval just isn’t realistic, the Large is the more forgiving choice. For everyone else, the Small covers the same lock, the same steel, and the same USPS compliant design in a smaller footprint.
Built for Chicago Weather: Materials and Construction
Adoorn’s founder, Adam, has been direct about the gap he set out to close. As he put it, “Your front door got a Ring. Your mailbox got nothing.” While home security modernized around the door, the mailbox sitting at the curb kept using the same rust prone steel and flimsy hardware it always had.
The Locking Post Mount is built from heavy duty galvanized steel, a material chosen specifically for outdoor durability rather than standard sheet metal. The hinges are stainless steel rather than the painted or plated hinges common on lower cost mailboxes, and the exterior finish is a rust resistant powder coat rather than paint alone. Inside, internal weather stripping and sealing magnets are built into the door to keep the compartment sealed against rain and snow.
That combination reflects Adoorn’s own framing of the product: a mailbox engineered the way the rest of a home’s exterior hardware already is, rather than the stamped steel design that’s gone largely unchanged for decades. The company designs its lineup from Chicago, Illinois, a detail it points to directly, given that a Midwest winter is a fair proving ground for anything claiming to hold up outdoors.
The Adoorn Product Lineup Around This Mailbox
The Locking Post Mount doesn’t have to stand alone. Adoorn sells it alongside a small set of matched hardware, from mounting posts to address numbers, so the mailbox, the post, and the house numbers can all be ordered as one coordinated setup. Here’s a closer look at the mailbox itself and the pieces most commonly paired with it.
Locking Post Mount Mailbox | Small
Adoorn’s Locking Post Mount Mailbox | Small is the model Architectural Digest named “Best Overall” in its Spring 2025 mailbox roundup. Built for curbside or street delivery, it’s the right fit for homeowners who want a lockable mailbox without the bulk of the Large size, holding 2 to 3 days of mail before it needs to be checked. At 12″ H x 12″ L x 18.5″ D and 17 lbs, it installs on a standard post without dominating the curb.
- USPS compliant anti-pry lock, ships with 2 keys included
- Heavy duty galvanized steel body with a rust resistant powder coat finish
- Internal weather stripping and sealing magnets to keep the compartment dry
- Available in multiple finishes, including Black, White, Curb Yellow, Red Red, Malbec, and Forest Green
- Concealed outgoing mail clip keeps outgoing mail out of sight
Price: $114.99, discounted from the regular $174.99 price. Adoorn also offers a bundle and subscribe option with a confirmed 48% savings when the mailbox is purchased as part of a larger setup.
Locking Post Mount Mailbox | Large
Adoorn’s Locking Post Mount Mailbox | Large is the higher capacity version of the mailbox Architectural Digest named “Best Overall.” It’s built for households that get more mail than a quick daily check can keep up with, holding 7 to 14 days of mail before it needs to be emptied. At 15.5″ H x 12″ L x 18.5″ D and 20 lbs, it uses the same lock and construction as the Small, just with more room inside.
- USPS compliant anti-pry lock, ships with 2 keys included
- Heavy duty galvanized steel body with a rust resistant powder coat finish
- Internal weather stripping and sealing magnets to keep the compartment dry
- Available in multiple finishes, including Black, White, Red Red, Malbec, Sandstone, and Forest Green
- Concealed outgoing mail clip keeps outgoing mail out of sight
Price: $174.99. Adoorn also offers a bundle and subscribe option with a confirmed 47% savings when the mailbox is purchased as part of a larger setup.
Adoorn In Ground Post
The Adoorn In Ground Post is the companion mounting post for Adoorn’s post mount mailboxes, installed directly into the ground rather than surface mounted. It’s built for homeowners setting up a new mailbox from scratch, and it’s listed as Adoorn’s most popular accessory. A Surface Mount Plate is included with the post to keep the mailbox stable and reduce shaking when the door opens and closes.
- Heavy duty galvanized steel construction with a scratch resistant powder coat finish
- 51″ H x 3.15″ W x 3.15″ D, with a 4″ x 10″ bottom hole mounting pattern that fits Adoorn’s post mount mailboxes and most other standard sized post mount mailboxes
- Installation instructions follow all USPS requirements, with all hardware included in the package
- Surface Mounting Plate included, sized 12″ x 6″ with a 10″ x 4″ hole spread
Price: $99.99, with the option to pay in 4 interest free installments of $25 through Affirm.
4″ Mailbox Address Numbers
Adoorn’s 4″ Mailbox Address Numbers are individually sold aluminum numbers designed to mount on the side of a mailbox or post, giving the setup a finished, coordinated look alongside the mailbox itself. They’re built for homeowners who want their address numbers to match the same modern design language as their Adoorn mailbox rather than using generic stick on numbers. Sold individually (0 through 9), they can be placed vertically, horizontally, or at an angle depending on the mailbox style.
- Solid, weather resistant aluminum, available in Black with a powder coat finish or Brushed Aluminum with a UV resistant topcoat
- 4″ height, sized for readability from up to 50 feet away
- Permanent, industrial grade adhesive backing designed to resist peeling from rain or snow
- Self application install that takes just minutes, with no tools required
- 3mm solid thickness, most numbers approximately 2.5″ wide
Price: $9.99 each. Affirm financing is available on orders over $35.
Adoorn’s Color Library and Pantone Matched Finishes
Most mailbox brands treat color as an afterthought: a handful of stock finishes, no real precision behind them. Adoorn takes a different approach. Its paint colors are matched to specific Pantone numbers, the same reference system used across design and manufacturing industries to guarantee a color looks identical no matter where or when it’s produced.
Black is matched to Pantone Black 2, White to Pantone White, Curb Yellow to Pantone 1235, Chili Pepper Red to Pantone 7592, and Dill Green to Pantone 2265. That level of published detail means a homeowner coordinating a mailbox with a front door, trim, or house numbers isn’t guessing at a shade. They’re working from an exact spec.
Beyond the Pantone documented shades, Adoorn’s palette rotates through additional finishes, including Malbec, Navy, Sandstone, Forest Green, and Aegean Sea. It’s a wider and more precisely documented range than the black, bronze, or white options that dominate most of the category, and it’s part of what gives Adoorn’s lineup its design forward reputation.
Installation, Warranty, and Returns
The Locking Post Mount ships fully assembled and includes all mounting hardware needed for setup, so there’s no separate hardware run to the store before it can go in the ground. It’s designed for an easy mount install rather than one that requires a contractor or specialized tools.
Adoorn backs the mailbox with a Limited Lifetime Warranty, covering manufacturing defects and failure of moving parts under normal use. The warranty applies to the original owner with proof of purchase, which is worth holding onto after the order ships.
If the mailbox isn’t the right fit once it arrives, Adoorn offers a 30-day return window from the date of delivery. To qualify, the mailbox needs to be unused and in its original packaging, and a return authorization is required before sending it back.
For the purchase itself, Affirm installment financing is available at checkout, giving buyers the option to split the cost into payments rather than paying the full price upfront.
Current Pricing and Bundle Savings
The Locking Post Mount | Small is currently priced at $114.99, down from its regular price of $174.99. Buying it on its own is one option, but Adoorn’s Best Bundles page also groups the mailbox with related hardware at a further discount.
The Secure Post Set, which pairs the mailbox with a mounting post, is priced at $235.00, down from $449.94. For a more complete setup that adds a package box, the Secure Bundle runs $485.00, down from a regular price of $999.89. Both bundles use the Locking Post Mount as their base product.
These prices were confirmed as of the research date behind this article and reflect Adoorn’s site at that time. Like any online pricing, they’re subject to change, so it’s worth checking the current price on Adoorn’s site before purchasing.
Is the Adoorn Locking Post Mount Mailbox Right for Your Home?
The Locking Post Mount is built specifically for curbside or street delivery. If mail arrives at the door or porch instead, Adoorn’s Wall Mount line is the model designed for that setup, not this one.
For homes where the carrier already stops at the curb, the fit is straightforward: a locking mailbox with the design credibility of an Architectural Digest “Best Overall” pick, in a size matched to how much mail the household actually receives.
The same model also scales beyond a single home. Adoorn’s HOA & Communities program uses this post mount mailbox to standardize an entire subdivision’s mailboxes, with custom colors available for communities of 500 or more. Whether it’s one house or an entire street, the Locking Post Mount is the same product doing the same job.
Summary
This look at the Adoorn Locking Post Mount Mailbox covered the mailbox itself in both sizes, the Small at $114.99 and the Large at $174.99, along with the hardware most people pair with it: the In Ground Post at $99.99 and the 4″ Mailbox Address Numbers at $9.99 each. It also covered Adoorn’s Best Bundles pricing, including the Secure Post Set at $235.00 and the Secure Bundle at $485.00, both built around this same mailbox.
The standout fact throughout is the Architectural Digest recognition, with AD PRO Directory designer Sarah Storms naming the Locking Post Mount “Best Overall” for its clean lines and sturdy galvanized steel build. That credibility is backed by real construction details: stainless steel hinges, a rust resistant powder coat finish, an anti-pry lock, and Pantone matched colors like Curb Yellow and Chili Pepper Red for anyone coordinating the mailbox with their home’s exterior.
For readers deciding what to buy, the size choice comes down to mail volume: the Small for 2 to 3 days of mail, the Large for households needing 7 to 14 days of capacity. Anyone setting up a new mailbox from scratch should also check whether the In Ground Post and address numbers make more sense bundled together, since the Best Bundles pricing applies specifically to those combinations rather than to items purchased separately.
