Boulder Post Mount Mailbox

Weather Ready: Made with galvanized steel to support performance through rain, snow, and sun

Rust-Resistant from Top to Bottom: This post mounted mailbox features a tough powder-coat finish, adding an extra layer of protection to this curbside mailbox.

Spacious, Not Oversized: Large mailboxes for outside offer plenty of room for mail, plus multiple packages—without looking bulky at your curbside.

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.

Easy Address Display: Embossed area on the outside mailbox door makes adding house numbers simple and stylish for quick identification.

Designed in the USA: Thoughtfully engineered with a focus on durability, function, and style.

Available Colors

SKU: 7900-7B-SR-10

WHERE TO BUY

Description

The Boulder is a bold take on the classic metal mailbox, finished in a classic black powder coat that adds character to any home. With its clean lines and cast aluminum pull, this post mounted mailbox blends modern style with everyday durability. Fully powder coated inside and out, it’s built to handle the elements making it a smart pick for mailboxes for outside that need to last. A magnetic latch keeps the door securely closed, and it’s USPS approved for daily delivery.

Sized to fit your needs, this large mailbox is built for flexibility, making it a great fit for everything from curbside mailbox setups to stylish mailboxes for outside the home. Whether you're upgrading your outdoor mailbox or adding a touch of personality to your curbside mailbox, the Boulder delivers refinement, function, and a standout look.

Specifications

Access Type
Front
Assembled Dimensions
10.6" H x 8.7" W x 20.7" D
Color
Black
Compatibility Code
F
Mailbox Security
Non-Locking
Mailbox Size
Large
Material
Galvanized Steel
Warranty
3 Year
Weight
5.2 lbs

Stamped with USPS Approval

Did you know? Every curbside mailbox has to get the thumbs-up from the United States Postmaster General. These mailboxes meet tough rules to keep your mail safe, easy to grab, and well protected.

Tested, Trusted, Approved

Stay delivery-ready with a USPS approved mailbox that meets every standard.


Deliveries Depend on It

Stay delivery-ready with a USPS approved mailbox that meets every standard.


Don’t Settle for “Standards”

Some mailboxes claim to “meet standards,” but only USPS approval guarantees smooth delivery.