5 Advantages of Upgrading to New USPS Approved Locking Mailboxes
April 25, 2025
With mail theft on the rise, you may be motivated to seek more secure mailboxes for your community. After all, mail theft can lead to consequences like identity theft and fraud. Mail thieves may also use your banking information to steal money from you or your tenants. You could lose mail that holds sentimental value as well, like birthday cards and wedding invitations. If residents’ mail and/or packages are stolen, they will likely complain and blame you.
A great solution to this problem is locking commercial mailboxes. They will withstand rough weather, protect your mail, comply with USPS regulations, have aesthetic appeal, and give you peace of mind. With these mailboxes, you will be able to rest easy knowing that your residents are happy and your mail and packages are safe.
Here is a breakdown of five advantages of upgrading to USPS approved locking mailboxes.
Durability and Weather Resistance
When purchasing locking mailboxes, it’s important to pay attention to their durability and how they will handle harsh weather. You don’t want mailboxes that require a high level of expensive maintenance and fall apart over a short period of time.
Salsbury Industries locking mailboxes are made of sturdy materials that will be able to withstand heavy rain and snow. They are constructed of heavy-duty aluminum and stainless steel hardware. This means that these mailboxes will last much longer and require less costly maintenance.
New Mailboxes Will Help Prevent Mail Theft
You receive correspondence that includes possible personal information like your social security number, banking details, and more. If a mail thief gets ahold of that information, they could steal your money and identity. They could also steal packages left in the lobby or vestibule of your building containing items that you spent your hard-earned cash to acquire.
One of the greatest advantages of upgrading to locking mailboxes is that they will help to prevent mail theft. With Standard 4C mailboxes and Cluster Box Unit (CBU) mailboxes, the door to each mail compartment comes with a heavy-duty cam lock with a dust/rain shield and three keys. There’s an anti-fish plate on the rear of the mail slot as well that will help to prevent any tampering with outgoing mail.
These mailboxes also include parcel lockers that will keep your tenants’ packages safe. When you receive a package, the mail carrier will place the key to the parcel locker in your compartment. When you unlock the parcel locker to retrieve your package, the key locks in place and only the mail carrier can remove it. This process ensures that your residents’ packages are protected.


Compliance with USPS Regulations
When picking out locking mailboxes for your community, it is crucial that the mailbox meets USPS regulations. Otherwise, mail carriers might stop delivering your mail, which will upset your residents. They could risk missing important correspondence like bills or jury summons. Here are some of the USPS requirements for USPS commercial mailboxes.
The tenant lock in the highest mailbox can be no more than 67” above the finished floor. The USPS Arrow lock opening needs to be no more than 48” above the finished floor. In compliance with ADA regulations, the high forward and high side reach has to be a maximum of 48” above the finished floor. According to USPS regulations, there must be one parcel locker for every five mail compartments.
Salsbury’s locking mailboxes meet or exceed all USPS requirements, so you won’t have to worry about mail delivery ceasing and upsetting your residents. You can find more information about United States Postal Service Mailbox regulations and specifications on this page.
Aesthetic Appeal
It’s important that you pick locking mailboxes that are not only functional but also nice to look at. You may not think the look of your locking mailboxes matters that much, but your residents will deeply appreciate sleek, attractive mailboxes that suit your community’s aesthetic. They might be more likely to talk to one another while picking up their mail from a new, good-looking mailbox that makes them feel safe. This will improve the connection between members of your community.
Salsbury Industries locking mailboxes come in an array of attractive styles and colors to ensure that you find mailboxes that suit your community. CBUs will give your neighborhood a more fashionable, cohesive look. Salsbury Industries’ Regency Decorative Cluster Box Units are an elegant way to go for your community. These mailboxes come in sandstone, bronze, green, black, and white and include matching pedestals, as well as decorative tops and decorative pedestal covers.
You may be surprised how much fun you’ll have selecting the style and color of your locking mailboxes. What could be a chore will be enjoyable as you peruse Salsbury Industries’ website with an eye out for the perfect locking mailboxes for your neighborhood.

Peace of Mind
One of the most important advantages of upgrading to USPS approved locking mailboxes is the peace of mind it brings. You won’t need to worry about mail and package thieves and complaints from your residents. Nor will you be dealing with the need for constant repairs due to daily wear and tear or weather. Aesthetically pleasing USPS approved locking mailboxes will save you from residents disliking their older mailboxes as well.
You want to not only give your residents secure locking mailboxes but also ones that are durable, comply with USPS regulations, and look good. Look no further than Salsbury Industries for your locking mailbox needs. We have a wide variety of locking mailboxes, ensuring that you will find the right ones for your neighborhood. Check them out here.