USPS Approved Cluster Box Units
In 2005, the USPS assigned new standards for all new and replacement cluster mailbox unit (CBU) installations in the United States. These new guidelines ensure manufacturers are providing the most secure and reliable units available. Stronger locks, tighter fitting closures, and durable materials make the modern CBU a secure choice for any new development using a centralized delivery point.
Top Quality Brands
The brands on our site are the industry leaders in CBU design and construction. Their USA made products represent the highest quality available. In fact, Auth Florence was chosen by the USPS to co-author the updated 2005 CBU regulations. This level of expertise is provided by each of our manufacturers.
Construction begins with solid, cast aluminum. After being powder-coated for rust and corrosion prevention, the components are assembled using high-strength stainless steel hardware. Once assembled, the heavy-duty cam rotates through the framework to keep the main compartment secure. Engineers have all but eliminated any possibility of prying the doors ajar by overlapping the edges and maintaining tight manufacturing tolerances. A multi-pin, tubular lock ties it all together to keep deliveries safe. Each unit is secured to a matching steel pedestal using one-half inch stainless steel bolts and lock nuts, creating a dependable unit from the ground up.
Our manufacturers know that just because their cluster boxes are built like a tank, it doesn’t mean they have to look like one. That is why they offer their powder-coated finishes in a variety of eye-catching colors to match your development’s architectural theme. The finish is baked on, creating a barrier that is far more resistant to rust and corrosion than traditional painted surfaces.
Incoming and Outgoing Mail
One concern we hear about CBU implementation is maintaining the ability to receive packages and send outgoing mail. The CBU addresses both of these needs. In addition to the specified number of individual mail compartments, each unit contains at least one small parcel compartment and an outgoing mail slot. Parcel compartments use a “keep-a-key” locking mechanism. The key is placed in the recipient’s general mail compartment during delivery and once inserted, the key is retained inside the lock until the next delivery. Outgoing letters enter the box through an anti-fishing comb to prevent criminals from stealing them through the drop slot.
Security, versatility, and style are on display with our top-quality cluster mailbox units. Take a minute to shop our selection of top-quality CBUs, or call one of our highly trained specialists to find the package that best fits your needs.