FAQs Request a Quote Contact
Shopping Cart EMPTY
109 Items Found

Shop by Category

All Office Building

Multi-Tenant Office Building Mailboxes For Sale - USPS Approved & Private Use

Browse U.S Mail Supply's selection of mailboxes for office buildings. Elevate your multi-tenant office property's mail management system by opting for our private-use and USPS-approved apartment mailboxes. We offer different mailbox options for mailboxes including cluster box units, 4C horizontal, 4B+ vertical, and 4B+ horizontal models. These mailboxes are secure, durable, and stylish solutions for any type of office building. Not sure what you need? Request a free quote and we’ll get back to you within 24-48 hours. 


Contact U.S. Mail Supply today at 262.782.6510 or 800.571.0147 for more information.


1 23456
1 23456

Key Features and Benefits of Our Office Building Mailboxes

Enhance the mail management system of your office building or multi-tenant property with our exceptional selection of mailboxes. Our office building mailboxes offer a range of impressive features and benefits that elevate functionality, security, and aesthetics.

Secure Mail Storage

Security is paramount, and our office building mailboxes prioritize the safety of your tenants' mail. Equipped with robust locks and tamper-proof designs, our mailboxes ensure that confidential and sensitive mail is protected from unauthorized access.

Durable Construction

Built to withstand the demands of a busy office environment, our mailboxes are constructed with high-quality materials. They are designed to withstand daily use, resist damage, and withstand adverse weather conditions, ensuring long-lasting durability and reliable performance.

Stylish Designs

Our office building mailboxes are not only functional but also add a touch of style to your property. Available in various designs, colors, and finishes, our mailboxes complement the aesthetic of your office building, enhancing its overall appearance.


Best Selection of Office Building Mailboxes for New Construction

We understand the unique needs of office buildings and offer a diverse selection of mailboxes to cater to your specific requirements.

Cluster Box Units (CBUs)

Perfect for larger office buildings, cluster mailboxes provide a centralized and secure location for mail delivery and retrieval. These units streamline the mail distribution process and ensure efficient mail management for your tenants.

4C Horizontal Mailboxes

Designed for office buildings with higher mail volumes, our 4C horizontal mailboxes offer a modern and efficient solution. They maximize space utilization, minimize clutter, and enhance the security of stored mail items.

USPS Approved Mailbox Replacements

If you're looking to upgrade or replace existing mailboxes, our selection of USPS-approved mailbox replacements has you covered. We offer a wide range of replacement options to ensure seamless integration and compliance with USPS standards.

4B+ Vertical Mailboxes

Ideal for office buildings with limited space, our 4B+ vertical mailboxes provide efficient mail sorting and distribution while saving valuable floor space. These compact mailboxes offer practicality without compromising functionality.

4B+ Horizontal Mailboxes

For office buildings that regularly receive larger mail items, our 4B+ horizontal mailboxes are an excellent choice. With their wider storage space, these mailboxes accommodate bulky mail items while maintaining a sleek and professional appearance.

Why Choose U.S. Mail Supply for Office Building Mailboxes?

Our office building mailboxes stand out for their exceptional quality and comprehensive solutions.

Premium Quality Materials

We prioritize quality and use only the highest quality materials in our mailbox construction. This ensures long-lasting durability and performance.

Variety of Styles and Sizes

We offer a wide range of styles and sizes to suit your office building's unique requirements and aesthetics. From sleek and modern designs to traditional options, we have the perfect mailbox for your property.

Reliable Locking Mechanisms

All our mailboxes are equipped with secure locking mechanisms to provide peace of mind and protect your tenants' mail from unauthorized access.

Office Building Mailbox FAQs

What should I consider when choosing mailboxes for my office building?

Consider factors such as size and capacity to accommodate the expected mail volume, security features, durability, and customization options for easy identification.

How many mailboxes do I need for my office building?

The number of mailboxes depends on the number of tenants or units in your office building. Generally, it's advisable to have one mailbox per unit, but it's essential to consider future growth and potential increases in mail volume.

Are there regulations or standards for office building mailboxes?

Yes, there are regulations and standards set by USPS and local authorities regarding mailbox size, placement, accessibility, and security features. It's important to consult with USPS or relevant authorities to ensure compliance.

Where should I install mailboxes in my office building?

Mailboxes can be installed both indoors and outdoors, depending on the layout and design of your office building. Outdoor installation requires weather-resistant mailboxes, while indoor installation is suitable for smaller buildings or areas with limited outdoor space. Check with USPS or local authorities for specific requirements.

Multi-tenant Office Building Mailboxes for Sale at US Mail Supply

At US Mail Supply, we offer a vast selection of commercial mailboxes for multi-tenant office buildings. From 4C mailboxes to CBUs, indoor or outdoor options, or 4B+ replacement units, we cater to all mailbox needs. Don't hesitate to contact us, request a quote, or call today. We're excited to help you find the perfect mailbox solution!

Contact U.S. Mail Supply today at 262.782.6510 or 800.571.0147 for more information.
Make sure to choose the RIGHT mailbox.

Don't worry, we can help you figure out what's best and most cost efficient for your space. A representative at U.S. Mail Supply will help you figure out what is required for USPS or private delivery, the number of units you need and any information required for installation.