How to Install a Wall Mount Mailbox (Height, USPS Rules & Placement Guide)

August 13, 2019

If you’re wondering how to install a wall mount mailbox, this step-by-step guide will help you follow USPS rules, choose the right height, and avoid common mistakes.

Learning how to install a wall mount mailbox the right way ensures both security and style while avoiding USPS violations. Ensuring it’s placed at the correct height and complies with USPS guidelines is crucial for functionality and mail security.

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In this guide, we’ll cover:

  • The correct height and placement for a wall mount mailbox

  • Essential USPS mailbox installation rules

  • Tips for weather protection

  • A helpful FAQ section

  • Recommendations for USPS-compliant mailboxes

1. How to Install a Wall Mount Mailbox: Best Placement Tips

Before installation, select a location on your home that offers natural protection from rain, snow, and direct sunlight. A mailbox exposed to the elements can deteriorate quickly, affecting both its appearance and the safety of your mail.

Ideal spots include:

  • Under a porch or awning

  • Inside a recessed wall or entry alcove

  • Next to your front door for easy access

Pro Tip: Even if your mailbox is weather-resistant, a covered location extends its lifespan and keeps your mail dry.

For more detailed guidance, check out our article on Easy Wall Mount Mailbox Installation Tips for Your Home.

2. Best Practices for Mailbox Placement on a House

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Position your mailbox so it’s visible from a nearby window or door. This allows you to check for deliveries without stepping outside, which is especially convenient during inclement weather.

However, avoid placing it in plain sight from the street if it has a mail viewing window, as this could attract unwanted attention.

3. Wall Mount Mailbox Height: Follow USPS Guidelines

The USPS recommends mounting wall mailboxes with the mail slot 41 to 45 inches from the ground. This height ensures mail carriers can deliver mail safely and efficiently.

If your entrance has stairs:

  • Measure from the bottom step to your desired mailbox location

  • Adjust accordingly to keep the slot within USPS height limits

📐 Mailbox Height Summary:        

Mailbox Feature Recommended Height
Mail slot (from ground) 41–45 inches
For porch/stairs Adjust for step height

Tip: When drilling into brick or stucco, use masonry anchors or concrete screws for a secure fit.

For a comprehensive guide, refer to our article on Wall Mount Mailboxes for Classic and Contemporary Homes.​

4. Consult USPS Before Changing Your Mailbox Location

If you’re relocating your mailbox to a new spot on your home, it’s advisable to get approval from your local USPS postmaster. This ensures:

  • Compliance with USPS regulations

  • Safe and unobstructed mail delivery

  • Avoidance of potential delivery disruptions

Make sure your installation follows the official USPS mailbox regulations to ensure proper delivery and compliance with national standards.

For more information on relocating your mailbox, read this guide on Relocating a Residential Mailbox in Four Easy Steps.

Featured Wall Mount Mailboxes (USPS-Compliant)

Looking for a new mailbox that’s secure, stylish, and easy to install? Here are three top-rated wall mount options:

Product Features Link
Whitehall Wall Mount Mailbox Aluminum construction, weather-resistant, elegant design View Product »
Bobi Classic Rear Access Locking Mailbox Sleek finish, USPS-compliant, secure rear access View Product »
Helix Spira Stainless Steel Locking Wall Mount Mailbox Rust-proof, contemporary style, heavy-duty lock View Product »
All these options are built to meet USPS mailbox installation requirements.

For insights on selecting the best features, explore our article on Wall Mount Mailboxes with the 5 Best Features to Look For.

Frequently Asked Questions

Q: What is the correct height for a wall mount mailbox?
A: USPS recommends the bottom of the mailbox slot be 41–45 inches from ground level.

Q: Where should I mount my mailbox on my house?
A: Choose a location that’s visible, easily accessible, and protected from weather—ideally near your front entrance.

Q: Do I need USPS approval for wall-mounted mailboxes?
A: If you’re changing the location or installing a new mailbox type, it’s best to check with your local post office.

Q: Can I install a mailbox on brick or stone?
A: Yes—use masonry anchors and weatherproof hardware to ensure a secure fit.

Q: What if my front entrance has steps?
A: Measure from the bottom step to keep your mailbox slot within the USPS height range.

Final Tips for a Successful Installation

  • Use a level and measuring tape for accurate placement
  • Pre-drill holes and use weather-resistant screws
  • Test visibility and accessibility before final installation

Ready to Install Yours?

At MailboxWorks, we offer a wide selection of USPS-approved wall mount mailboxes to suit every style—from traditional to modern, locking to decorative. Whether you’re installing for the first time or upgrading your home’s entry, we have the right solution.

👉 Browse Wall Mount Mailboxes Now »
👉 Or call us at 1-866-717-4943 for expert recommendations

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