Durable, Decorative Cluster Mailboxes for Every Property

Your Trusted Partner for Centralized Mailbox Solutions

Cluster Box Units (CBU)

4C Mailboxes

Package Protectors

Horizontal Mailboxes

CBU's & Replacement Products

4C Mailboxes & Replacement Parts

At Forsite, we understand the importance of efficient and secure mail delivery for both residential and commercial properties. That's why we offer a comprehensive selection of centralized mailbox systems, designed to meet the evolving needs of communities and businesses that serve the dual purpose of postal efficiency and neighborhood aesthetics. Whether you're managing a new residential development, upgrading aging infrastructure, or designing a stylish multi-unit complex, our USPS-approved solutions are designed to meet today’s delivery standards and tomorrow’s expectations.

Modern Mail Delivery, Centralized for Simplicity

Clustered mailbox delivery isn’t just a trend—it’s the national standard for mail service in planned communities, apartment complexes, and business campuses.

Centralized mail delivery systems, also known as cluster mailbox systems, have become the preferred choice for new developments and renovations. These systems feature multiple individual mail compartments grouped together in a single unit, typically located in a central and easily accessible location. This eliminates the need for individual mailboxes at each residence or business door, streamlining mail delivery for both residents and postal carriers.

A centralized mailbox system consolidates multiple locked mail compartments into one secure, weather-resistant unit—streamlining USPS delivery routes while enhancing visual appeal and community flow.

Q: What is a Cluster Mailbox Unit (CBU)?
A: A USPS-approved pedestal mailbox with multiple tenant compartments, often used for secure centralized mail delivery in residential or commercial developments.

Our Centralized Mailbox Products

Cluster Box Units (CBUs)

Cluster Box Units (CBUs): USPS-approved CBUs are the workhorses of centralized mail delivery. They come in a variety of configurations, from free-standing pedestal-mounted units to wall-mounted options, offering flexibility to suit any space. Each unit features individual locking mail compartments that ensure secure delivery of mail and packages.

• USPS-Approved: Fully compliant with postal service regulations

• Durable Construction: Engineered for outdoor exposure and daily use

• Flexible Mounting: Choose from pedestal or wall-mounted configurations

• Tenant Security: Each mailbox has its own lockable compartment

• Package Compartments: Integrated parcel lockers for secure drop-offs

4C Mailboxes

4Cs: Similar to CBUs, 4Cs are another USPS-approved option for centralized mail delivery. They offer a more compact design, ideal for smaller spaces or multi-unit residential buildings.

• Ideal for indoor settings or smaller multi-tenant buildings

• Wall-recessed or surface-mounted options available

• Full USPS compliance for centralized delivery

• Compact, space-saving, and sleek

Q: What's the difference between a 4C mailbox and a CBU?
A: 4C mailboxes are typically wall-mounted for indoor or sheltered spaces, while CBUs are pedestal-mounted and designed for outdoor use. Both are USPS-compliant for centralized mail delivery.

Customization that Matches Your Aesthetic

We don’t just deliver mail—we deliver curb appeal. Our CBUs and 4Cs come in a range of colors and finishes, with decorative accessories like post toppers and finials that complement your architectural style. You can match your mailbox systems to your community wayfinding signage for a unified, professional look.

Upgrade to Secure Package Delivery

E-commerce has changed the game—your residents need secure options for parcel delivery. That’s why we offer integrated package lockers and optional package protectors designed to safeguard deliveries from theft, weather, and missed drop-offs.

Package Locker: A secure, oversized compartment within a centralized mailbox system for USPS to deliver parcels safely when residents aren’t home.

Transitioning from Horizontal Mailboxes? We Can Help.

Horizontal mailboxes are no longer USPS-approved for new installations. If your building still relies on them, it’s time to upgrade. Forsite offers turnkey consultations and USPS-compliant replacements that reduce risk and improve tenant satisfaction.

Your One-Stop Partner for Mail Delivery Systems

From design consultation to installation and maintenance, Forsite is your trusted provider of centralized mailbox solutions for:

• Homeowner associations (HOAs)

• Residential developers

• Property managers

• Commercial campuses

• Municipal buildings

• Schools and institutions

Beyond the Basics: Customization and Security

Forsite goes beyond providing standard CBU and 4C units. We understand that aesthetics matter, and we offer a variety of decorative options to complement your property's architectural style. This could include mailboxes in a range of colors and finishes, or even decorative post toppers to add a touch of character.

Enhanced Package Security:

The growing popularity of online shopping has increased the demand for secure package delivery solutions. We offer a variety of package protectors that can be integrated with your centralized mailbox system. These secure compartments provide residents with a safe and convenient location to receive packages 24/7, eliminating the worry of missed deliveries or package theft.

Farewell to Horizontal Mailboxes:

While horizontal mailboxes were once the standard for multi-unit dwellings and businesses, they are no longer permitted for new installations with USPS mail delivery. However, Forsite can help you navigate the transition from horizontal mailboxes to a modern and efficient centralized mailbox system. We offer consultations and comprehensive solutions to ensure a smooth and compliant upgrade.

A Partner You Can Trust

Forsite is your one-stop shop for all your centralized mailbox system needs. From initial consultation and design to installation and ongoing maintenance, our team of experts is here to guide you every step of the way. We are committed to providing high-quality products, exceptional service, and solutions that meet your specific requirements.

Contact Forsite today to discuss your centralized mailbox system needs and create a solution that delivers both security and style. We don’t just sell boxes—we engineer systems that serve your residents for decades.