Post Mount Mailbox
Adoorn’s non-locking Post Mount mailbox is built from durable, weatherproof steel for grab-and-go access—no key, no hassle.
Overview
Features
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Designed To Deliver
SHIPS IMMEDIATELY
99% ship same day & fast delivery
FREE SHIPPING
All orders ship free. Always.
LARGE CAPACITY
Handles mail & packages.
Designed To Deliver
SHIPS IMMEDIATELY
99% Ship Same Day & Fast Delivery
FREE SHIPPING
All order ship free. Always.
LARGE CAPACITY
Handles mail & packages.
SHIPS IMMEDIATELY
99% Ship Same Day & Fast Delivery
FREE SHIPPING
All order ship free. Always.
LARGE CAPACITY
Handles mail & packages.
Four Reasons 40,000+ Customers Made the Switch
Upgraded Curb Appeal
Your mailbox is the first thing people see—make sure it reflects your personality & style.
Large Capacity to Receive More
Spacious enough for daily mail and multiple packages up to 16" x 8" x 7.5".
Heavy-Duty Steel Construction
Galvanized steel construction, stainless steel hinges and rust-resistant powder coat finish are built for real life.
Built to Beat the Weather
Internal weatherproof stripping & sealing magnets and a 1.2° sloped roof keep out rain & snow.
Four Reasons 40,000+ Customers Made the Switch
Holiday Sale: Bundle More + Unlock Savings
Complete your mailbox kit and save even more.
What Our Customers Are Saying
What Our Customers Say
40,000+ homeowners trusted us to upgrade their curb appeal and become the envy of the neighborhood.
Not Your Average Mailbox
Adoorn delivers the perfect blend of design, durability, and convenience.
Fits Mail & Packages
Stop cramming envelopes and bending magazines—this oversized mailbox has room for it all.
Upgraded Curb Appeal
Transform an everyday detail into a modern design feature your neighbors will notice.
Won’t Rust or Wear Down
Invest in heavy-duty, weatherproof steel built to last season after season.
Keeps Your Mail Dry
Protect letters, magazines, and deliveries from rain, snow, and the elements.
Fits Most Posts
Skip the hassle—our universal design installs easily on your existing post.
Adoorn in Real Life
Swipe right to get a feel for size, shape, and styling in real spaces.
Modern. Large Capacity. Weatherproof.
From mail to magazines, every delivery feels better when your mailbox upgrades your home’s first impression.
🏆 The #1 Most Talked About Mailbox
How We Compare
Reinforced Weatherproof Sealing
Meets USPS Standards
Allows outgoing mail, meets size specs, passes weather-resistance testing and functionality testing
Multiple Color Options
Receives What Type of Mail
Holds How Many Days of Mail
External Size Dimensions
Max Package Size
Post Mount Mailbox
available colors
Receives mail + medium packages
2–3 days of mail
9.5" H x 9.5" W x 19.5" D
Receives packages:
16" x 8" x 7.5"
Competition
available colors
Receives mail + small packages
1 day of mail
8.8" H x 7" W x 19" D
Receives packages:
19" x 6.75" x 4"
How We Compare
Reinforced Weatherproof Sealing
Meets USPS Standards
Allows outgoing mail, meets size specs, passes weather-resistance testing and functionality testing
Multiple Color Options
Receives What Type of Mail
Holds How Many Days of Mail
External Size Dimensions
Max Package Size
Post Mount Mailbox
Mail + medium packages
2–3 days
9.5" H
9.5" W
19.5" D
16" x 8" x 7.5"
Competition
Mail + small packages
1 day
8.8" H
7" W
19" D
19" x 7" x 4"
$99 — and Still The Best in the Market
Slanted Roof for Rain
Smart 1.2 degree slope sends water off the back, not inside.
Attachable Mail Flag
Never miss a pickup—flag signals when you’ve got mail to send.
Heavy-Duty Galvanized Steel
Thick, weather-tough steel that resists rust and wear.
Secure Magnet Closure
A clean snap seals it shut—no slamming, no guessing.
Precision-Cut Foam Sealers
Foam lining locks out water and softens every close.
Receives Small Packages
A clean snap seals it shut—no slamming, no guessing.
Designed for Easy Assembly
Mounting Pattern Made Simple
The pre-drilled base lines up with most standard posts. Just match the pattern for your post and you're ready to go.
Includes Everything You Need
Every screw and washer’s in the box—just grab a wrench and Phillips head, then follow our step-by-step guide for a quick, secure install.
Looking for Added Security?
75% of Americans have faced mail theft in their homes. Adoorn offers locking functionality at no additional cost.
What is the maximum size package that can fit in the mailbox?
The Post Mount Mailbox is an oversized mailbox that can receive mail, envelopes, polybag style packages and package boxes. The largest size rigid package that can fit inside the top opening is 8" x 7.5" x 16".
If you're looking for a solution to receive package deliveries too, we recommend bundling a post mount mailbox with one of our Package Boxes.
Is it weather resistant?
Yes. We've built numerous features into the post mount mailbox to keep your mail and deliveries dry. It's designed with a 1.2 degree sloped top so rain & snow slides off the back, not inside. It has weatherproof foam lining around the door to keep our water. And the mailbox is made from heavy-duty galvanized steel with a rust-fighting powder coat finish to outlast rain, sun and whatever else rolls in.
Is this a premium mailbox?
Absolutely. The Adoorn Post Mount Mailbox is built to last, but designed for the wow. On top of the elevated design, it is made from heavy-duty galvanized steel, stainless steel hinges and rust & scratch resistant powder coat finish prevent rust, fading and wear.
How do I install the mailbox onto a post?
It’s simple! For ease of installation and a guaranteed fit, we recommend purchasing one of our adoorn posts. Our post mount mailboxes can be installed into an adoorn post or most standard metal or wood mailbox posts. Installation hardware and easy-to-follow instructions come with the product. Our instructions include guidelines for height and set back requirements at your curb, but please contact your local post office if you have any questions!
Does this mailbox meet USPS requirements?
Our mailboxes abide by and follow all USPS regulations. Our installation instructions include guidelines for height and set back requirements at your curb. And, you can also include delivery instructions for deliveries to be placed in your mailbox.
