Two Neighbors Upgrade to High-Security Locking Mailboxes on a Shared Mailbox Post

One thing I've learned from installing mailboxes is that every neighborhood handles mailbox maintenance a little differently.
Some homeowners focus only on their own mailbox. Others look at the entire streetscape and recognize that a mailbox is one of the first things people see when they drive through a neighborhood.
For this project, a homeowner found Bellingham Mailbox online and contacted us about upgrading to a high-security locking mailbox. After discussing what they were looking for, we proposed a solution to replace two mailboxes.
Why We Recommended Replacing Both Mailboxes
In front of the home were two mailboxes sitting side-by-side, each mounted on its own individual post.
Like many neighborhoods, all of the mailboxes for homes on both sides of the street were located along one side of the road. That means the homeowners on that side often end up looking at not only their own mailbox, but their neighbors' mailboxes as well.
Rather than replacing only one mailbox, we suggested speaking with the neighboring homeowner about upgrading both mailboxes at the same time.
Fortunately, both neighbors agreed.
That isn't always the outcome.
When a neighborhood isn't governed by an HOA, coordinating shared improvements can sometimes be difficult. Homeowners may have different priorities, different budgets, or simply different opinions on what needs attention.
In this case, the neighbors worked together to create a solution that benefited both properties.
One thing I always appreciate about projects like this is that they often result in:
- Lower costs for each homeowner
- A cleaner overall appearance
- Better neighborhood curb appeal
- Consistent mailbox design
- Improved mail security for everyone involved
Why Shared Mailbox Posts Are Popular
A shared mailbox post is a common solution when two neighboring homes have adjacent mailbox locations.
Instead of maintaining two separate mailbox posts, a single reinforced structure can support both mailboxes.
Benefits include:
- Fewer posts along the roadside
- Cleaner appearance
- Reduced installation costs
- Simplified maintenance
- Better overall aesthetics
When paired with modern locking mailboxes, shared mailbox posts can provide both security and curb appeal.
Removing the Existing Mailboxes
To begin the project, I removed both existing mailbox posts and mailboxes.
With the old installations removed, the area was prepared for a completely new mailbox system.
Because two high-security locking mailboxes would be installed, a sturdy foundation was important to ensure the setup remained straight and stable for years to come.
Installing the New Mailbox System
The new installation began with a heavy-duty steel mailbox post secured in concrete.
Once the post was properly aligned and plumb, I installed a two-mailbox spreader plate designed to support both mailboxes evenly.
Finally, two Mail Boss Mail Manager Pro high-security locking mailboxes were mounted and secured to the spreader plate.
The Finished Result

What started as:
- Two aging mailbox installations
- Separate mailbox posts
- Limited mail security
became:
- A shared reinforced mailbox post
- Two high-security locking mailboxes
- Improved neighborhood curb appeal
- Better mail security for both homeowners
- A cleaner and more organized streetside appearance
Projects like this are a good reminder that sometimes the best mailbox upgrade isn't just improving one property, it's finding a solution that benefits multiple homeowners at the same time.
Learn More About the Products Used
Want to learn more about the products used in this installation?
Watch our YouTube product reviews and installation videos here:
Mail Boss Mail Manager Pro
Mailbox Spreader Plate
Heavy-duty Steel Post
The Mail Boss Mail Manager Pro mailboxes, heavy-duty steel mailbox post, and two-mailbox spreader plate used in this project are available through our online store:
Mail Boss Mail Manager Pro
Mailbox Spreader Plate
Heavy-duty Steel Post