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Salsbury 3308R-BRZ-U 8 Door Regency Decorative Cluster Mailbox Bronze

(View all from Salsbury Industries)
SKU: WL-3308R-BRZ-UBM  |  View All 8 Door Decorative Cluster Mailboxes
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List Price:
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$397.22 (20%)

Volume Discount Pricing
2 - 5$1,541.00
6+ $1,502.67
Includes CBU, Pedestal, Decorative Top And Base
Select Option

Pedestal Included*

Will the USPS be delivering to this mailbox?*

Door ID Layout*

Optional Anchor Bolts*

Door Identification*

According to manufacturer:
Standard - Usually ships in 3 to 5 business days
Custom - Usually ships in 2 weeks
Ships directly from the factory floor to ensure the quickest available delivery.
16 Door CBU

USPS Approved and Ready

USPS Approved Mailbox

Salsbury CBU’s are Pre-approved

Pre-approved by the USPS, cluster mailboxes are considered the industry standard when it comes to outdoor, centralized mail delivery.

Installation Location

If you are involved in a new construction development, you have probably already consulted or will consult with your local postmaster regarding the placement (location) of your CBU. If not, we recommend it.

Master Lock Installation

After installing the CBU, follow-up with your local post office and the USPS will install their master lock for the main access door. Note: the USPS provides the master lock and only they have the keys to it.

16 Door CBU

The Regency™ Decorative Cluster Mailbox

The Regency™ Decorative Cluster Mailbox1
The Regency™ Decorative Cluster Mailbox2

Salsbury’s Regency Decorative CBUs include the standard CBU along with the 1) decorative finial crown cap and 2) the rounded pedestal cover. The decorative top and pedestal covers are made of high-grade, die-cast aluminum. The decorative top easily attaches to the CBU and includes a 3-inch diameter ball finial. Likewise, the decorative pedestal cover attaches over the included CBU pedestal and comes with all the needed installation hardware for assembly. Regency Decorative CBUs are accessed from the front by way of two (2) easy-opening master doors. Like the standard Salsbury units, these decorative models feature a durable powder coated finish available in five (5) contemporary colors. Minor assembly is required.

16 Door CBU

Five Year Warranty

5 Year Product Warranty

All cluster box units (CBUs) sold on come with a Five (5) Year Warranty.

Salsbury Industries covers defects in material and workmanship if reported in writing to them within five (5) years of the delivery date for CBUs. Refer to the Salsbury Warranty sheet for more details.

16 Door CBU

New USPS Standard

USPS Approved Mailbox

Obsolete: NDCBUs are no longer permitted for replacement or new installations

USPS Approved Mailbox

New CBUs accommodate both mail and packages while providing greater security.

Developed and approved by the USPS in 2005, the new cluster box unit specification (right image) became the standard for all manufacturers and replaces both the outdated Neighborhood Delivery Collection Box Unit (NDCBU) and the “E” series CBU.

While the original NDCBU introduced convenience for residents and letter carriers alike, it is no longer permitted for replacement or new installations. These outdated units fall into disrepair as they age and are, in many cases, quite dilapidated. The newer 2005 specifications boast a thoroughly tested design that provides better security and durability over time.

16 Door CBU

CBU High-Security Standards

BM Lock

All CBUs are designed to deter mail theft attempts using the following features:

  • All units are made of high grade, industrial, aircraft-quality aluminum.
  • On the outside of the unit, there are no removable fasteners. This prevents tampering.
  • The cabinet is made using high-precision robotic welding.
  • The CBU uses a sloped roof for water run-off and a drip-edge in the front to protect the individual slots from rainwater.

    Drip Edge
  • The master-loading door has a vertical bridge with an overlap that eliminates the gap between the two master-loading doors -- in other words, there are no pry-points on the unit.

    No Pry Point
  • Heavy-duty, zinc-plated cam locks are tamper proof and latch through the aluminum frame for added security.

    Cam Lock
  • The outgoing mail slot uses a sloping hood to prevent a person from reaching in with their hand.

    Sloped Hood
  • The aluminum, anti-fish comb deters thieves from reaching into the slot with coat hangers or other prying tools.

    Anti Fish Comb
16 Door CBU

Don’t need USPS delivery? Convert to private use.


If you don’t need USPS delivery and you intend to use the CBU for private use (where a company or organization will need access to open the master door for delivery), then you need the Postal to Private Conversion Kit, which can be purchased via the dropdown options section of any CBU.

Under the Option labeled “Will the USPS be delivering to this mailbox?”, select “No, this box is for private use…”. Private delivery CBUs are typical where mail delivery is handled by private distribution within the company or organization.

16 Door CBU

Lead Times

BM Lock
  • All orders ship directly from the factory floor to ensure the quickest available delivery.
  • takes delivery dates and deadlines seriously. We update our lead time projections frequently in an effort to provide you with the most accurate projections. Currently, we estimate the following lead time:

    Standard - Usually ships in 3 to 5 business days
    Custom - Usually ships in 2 weeks

  • When you select standard numbering (e.g, 1-8, 1P & 2P) for the CBU doors, the mailbox usually ships in 3 to 5 business days.
  • When you select custom number plates or engraving, the CBU will usually ship in 2 weeks.
16 Door CBU

Customize Your Door ID Layout

8 Door Custom Layout
  • Step 1 - Select "Custom Layout Required" from the dropdown option labeled Door ID Layout.
  • Step 2 - Open this layout form linked here and customize the layout to suit your needs.
  • Important: To ensure a custom layout is processed correctly, we ask that you complete this form after completing your purchase. For your convenience, we will also email you a copy of the form after your order is placed (note: this only applies if you select Custom Layout from the dropdown options).
  • Customers purchasing a CBU with Standard Numbering or Custom Numbering applied top-down from left to right do not need to fill out this form.
16 Door CBU

Door ID Options

Door ID Options Door ID Options Door ID Options Door ID Options

Decals: All CBUs come standard with silver adhesive decals 1.5 inches high by 1.75 inches wide. Black lettering can contain up to five characters per decal.

Engraving: Custom engraving utilizes the USPS Standard US Block font with up to 12 characters per line. This ¾ inch high engraving may be created with or without one of two color fill options (white or black).

See this info sheet for more details on door ID options.

Note: CBUs selected with custom decals or engraving usually ship in three (3) weeks. We cannot rush orders for units purchased with custom numbering.

16 Door CBU

Optional Anchor Bolts (for New Concrete Installations only)

Optional Anchor Bolts

If you need anchor bolts for your CBU installation, add them from the dropdown options above the Add to Cart button.

Question: How do I know if I need anchor bolts?

Answer: The CBU anchor bolts, nuts, and/or vandal proof nuts for pedestal installation are specifically for installations where new concrete is being poured. For installing your CBU in existing concrete, see the Installation Walkthrough.*

  • The kit includes everything required to mount the CBU pedestal to newly poured concrete.
  • Bolt specs:
  • Hardware kit includes four (4) stainless steel anchor bolts and four (4) standard nuts.
    • Vandal proof nuts can be purchased in addition to the standard nuts for added security.

*Note: actual measurements between bolts should be confirmed prior to installation. is not liable for faulty installation due to inaccurate measurements.

16 Door CBU

Technical Specifications (Dimensions, etc.)


The top of the cluster mailbox (the crown) is 30.5 inches wide by 18.5 inches deep. The cluster box itself measures 30.5 inches wide by 16.75 inches deep by 48.25 inches high. Including the pedestal, the total unit height is 62 inches. For more detailed specifications, please view this Technical Drawing.

16 Door CBU

Color Options

The Salsbury Regency 8 Door CBU is offered in five color variations. (Note: all green and white CBUs purchased on are manufactured by Salsbury Industries.)

Sandstone is the most popular color option and is considered the new architectural standard. All finishes are powder-coated and corrosion-resistant. If you need to purchase a different color, you can view our selection of variations on the Regency 8 Door CBU Category Page.

16 Door CBU

Design and Other Specifications

CBU Design and Specs

The 8-Door CBU includes two (2) fully integrated parcel locker and a matching pedestal. One additional compartment is labeled "Outgoing Mail" and includes a weather protection flap and an 12 in. W x 3 in. H mail slot.

The CBU also features individually numbered mail compartments and a mail carrier access door for USPS provided master arrow lock.The unit itself is constructed of high-grade, heavy-duty, aircraft aluminum while the hardware is constructed of stainless steel. All CBUs on are manufactured here in the USA.

Cluster Mailbox Overview
Sloped top for moisture runoff
Standard silver adhesive identification decals contain up to five characters (engraving optional)
Fully Integrated parcel locker(s) with key trapping lock
Interlocking, overlapping seams and tight clearances to prevent prying
Integrated Outgoing Mail Slot with weather protection hood
Convenient solid aluminum integrated outgoing mail collection compartment prepped for USPS Arrow Lock
Cluster Mailbox Master Door Open
Easy release handle to open master gate
Heavy-duty tenant cam lock with three keys
Rugged, weather-resistant powder coat finish in four architectural colors
Stainless steel hold open door catch on each side of master gate
Aluminum comb prevents mail fishing in outgoing mail collection compartment
Heavy duty cam latches through frame for added security
Matching Aluminum
16 Door CBU

Wide Tenant Boxes Accommodate Larger Envelopes and Magazines

Wide Box

Shown above: the 8 Door CBU Tenant Box (3 in. high)

Wide Box

Shown above: the 13 Door CBU Tenant Box (4 - ¾ in. high)

The Cluster Box Unit’s tenant compartment size is known as a 4C Horizontal mailbox, which is the current USPS Standard for centralized mail delivery. Under 4C regulations, the tenant boxes are wider so that all mail, including larger envelopes and magazines, can be delivered flat without any folding. There is also enough room in each tenant box for small-sized parcels.

16 Door CBU

Integrated Parcel Lockers

Integrated Parcel Lockers

Among the many benefits of the CBU are the integrated parcel lockers for package delivery. If you receive a parcel, the Postal Carrier will conveniently leave the key to the parcel locker in your mailbox so that you can retrieve your package.

Security Tip: Once you enter the key and open the parcel locker the key cannot be removed. This is by design so that only the postal carrier can remove the parcel locker key.

16 Door CBU

The matching CBU Pedestal - Easy Installation

The matching CBU Pedestal - Easy Installation

*Disclaimer: the CBU anchor bolts, nuts, and/or vandal proof nuts for pedestal installation are specifically for installations where new concrete is being poured. Actual measurements between bolts should be confirmed prior to installation. is not liable for faulty installation due to inaccurate measurements.

All Salsbury cluster mailboxes include an easy-to-install pedestal. The CBU Pedestal is constructed of heavy-duty, corrosion-resistant aluminum. Cluster mailboxes can be mounted on the included pedestal (or a base of your choice provided it meets USPS height specifications).

The pedestal comes with the needed stainless steel hardware for 1) mounting the pedestal to the cluster box and 2) mounting the unit to the concrete slab (using standard bolts). If you need to purchase anchor bolts for installation prior to pouring the concrete slab,* you can add these via the dropdown options above the Add to Cart button.

The CBU concrete pad spec sheet for installing the pedestal into new concrete is below.

CBU concrete

For more details on pedestal installation, see our Installation Walkthrough.

16 Door CBU

What is included with the CBU?

What is included with the CBU?

The CBU cabinet and pedestal are packaged separately. Below is a list of components and hardware you will receive in each package.

Pedestal Package:
  • Template - guide to locate the pedestal base anchors
  • Rubber Pad - installed between the ground and the pedestal base
  • Pedestal - fully assembled
Cabinet Package:
  • CBU mailboxes and parcel lockers in protective cabinet
  • Hardware kit in plastic bag (shipped inside the CBU compartment) that includes:
    • Pedestal hardware
    • Tenant keys
    • Parcel keys and tags
    • Installation manual
  • Cleaning instructions
  • Parcel door hardware (in a plastic bag inside the cabinet) - (2) McGard and (3) two-way screws; (4) Arrow Lock nuts; and panel lock covers attached with temporary plastic fastener
16 Door CBU

Heavy-Duty Cam Lock

Heavy Duty Cam Lock

Every tenant door on the Cluster Box Unit features a stainless steel heavy-duty five-pin cylinder cam lock with a dust and rain shield, along with three (3) keys. This simple yet effective locking mechanism provides the needed security to keep your mail safe until you retrieve it.

If you ever need to replace one of the cam locks, the process is very straightforward.

16 Door CBU

Opening the Master Doors & Locating Your Keys

  • Cluster Box Units (CBUs) are accessed from the front through two (2) easy-to-open master door panels.
  • Watch the video to see how to open the master doors and locate your keys (hint: the keys are taped to the inside of your box and are usually inside one of the parcel lockers).

See the corresponding video for more details.

16 Door CBU

Installation Walkthrough


Here we go over the basics of installing your cluster box into existing concrete. If you plan to install your CBU into new concrete, please see our Installation Manual below.

Note: we recommend you watch the video at the bottom of this section to get an idea of the installation process.

The Pedestal

When you open up the carton for the pedestal, you have a gasket and a template also. Follow the steps below to install your CBU pedestal into the concrete pad:

  1. Locate the center of the pad, put the mounting template down, and then start drilling your holes (using the template).
  2. Drill down four and a half inches with a half-inch drill bit.
  3. Make sure the surface is clear of rocks and debris.
  4. Once the area is clean, place the gasket down on the concrete (this serves as a barrier between the cement and the pedestal).
  5. Now place the pedestal on top of the gasket. If it's not level, you can add washers to the uneven side.
  6. Once the pedestal is level, you can place your anchors, which are four and a quarter inches long by one-half inch wide.
  7. Place the anchors into the holes and torque the bolts down until they're tight using a socket wrench (you can also use an impact wrench to tighten the bolts).
  8. Once you've tightened the bolts, double check that the pedestal is level.

The Cluster Box

Upon receiving the boxes, open them up to make sure there's no damage. Two people should place the box on the pedestal stand: one person can hold the box while the other person fastens it to the pedestal.

To fasten the box:

  • Inside the box, there will be access plates in the parcel locker(s). Go ahead and slide those out.
  • This will allow you to access the hardware to secure the box to the pedestal.
  • Place the washer on the bolt, followed by the nut. Do this to all four top bolts.
  • Ratchet the nuts with a nine-sixteenths (9/16) socket wrench.
  • Once these bolts are tight, return the access plates you removed from the parcel locker(s) in step one to cover the hardware.

Once complete, close up the box. Now, you will need to contact the post office to send someone to install their arrow locks for USPS access. The postman will install one arrow lock in the outgoing mail slot, and one in each parcel locker.

16 Door CBU

Installation Manual


Looking for a different document? See our full list of printable PDFs.

16 Door CBU

Who has a USPS License to manufacture CBUs?

Who has a USPS License to manufacture CBUs?

Salsbury Industries began manufacturing mailboxes in 1936 and has an exclusive license from the USPS to manufacture Cluster Box Units (CBUs) in the USA.

Brand Features:
  • Lead times - Salsbury CBUs tend to ship in about 3-5 business days, which puts them as the fastest manufacturer in the country for turnover time.
  • Finishes - Salsbury offers Regency CBUs in five (5) architectural finishes: Sandstone, Bronze, Black, Grey, White, and Green.

Options - the Salsbury CBU always includes the pedestal and can be configured with custom door identification.

16 Door CBU

What types of customers purchase Cluster Mailboxes?

16 Door CBU

Over the past nine years, we have serviced all types of properties. CBUs are commonly installed at the following:

  • Apartment Complexes
  • Homeowners Associations
  • Municipalities
  • Universities
  • Commercial Developments
  • Small Businesses

We are proud to supply CBUs to some of the nation’s most respected cities and companies. Here are some of our recent notable customers.

16 Door CBU

Salsbury CBUs - A Comprehensive Comparison

Salsbury USPS Approved Cluster Box Units

USPS Approved CBUPre-configured units include built-in parcel lockers and outgoing mail collection for added convenience to be used alone or in large groupings to accommodate every project need.

Below we list each pre-configured model number along with its associated manufacturer. Refer to the table below for detailed specs.

  • 3308


  • 3312


  • 3316


  • 3313


Model # Installed Height Installed Width Installed Depth Pedestal Height Weight (LBS) Tenant Compartment Dimensions Mailbox Compartments Parcel Lockers
330862 - ¾ in.30 - ½ in.18 in.28 - ½ in.1553 in. H x 12 in. W x 15 in. D82
331262 - ¾ in.30 - ½ in.18 in.28 - ½ in.1553 in. H x 12 in. W x 15 in. D121
331662 - ¾ in.30 - ½ in.18 in.14 - ½ in.1753 in. H x 12 in. W x 15 in. D162
331362 - ¾ in.30 - ½ in.18 in.14 - ½ in.1654 - ¾ in. H x 12 in. W x 15 in. D131
16 Door CBU

Salsbury Outdoor Parcel Lockers - A Comprehensive Comparison

Salsbury USPS Approved Outdoor Parcel Lockers

Salsubary USPS ApprovedIndustry unique package delivery systems with key trapping locks can be used alone or with your CBU installation for better convenience. Below we list the available parcel lockers by Salsbury Industries.

Salsbury USPS Approved Parcel Lockers

  • usps1
  • 13door2
  • usps2
  • usps3
  • usps4
  • usps5

Key Manufacturer Notes:

  • Salsbury Industries manufactures the 3302 Parcel Locker, which is USPS Approved for outdoor parcel delivery
  • Private delivery models are also available here.
Manufacturer Model # Installed Height Installed Width Installed Depth Pedestal Height Weight (LBS) Parcel Compartment Dimensions Parcel Lockers
Salsbury Ind.3302XXX62 in.16 in.18 in.14 - ½ in.10019 - ⅝ in. H x 12 in. W x 15 in. D2
Note: for Salsbury Industries, exchange the “XXX” for these color references: Sandstone (SAN), Black (BLK), Bronze (BRZ), Grey (GRY), Green (GRN), White (WHT).
16 Door CBU

Salsbury Decorative Accessories - Comprehensive Comparison

Regency Decorative Cluster Mailbox Accessories

Click on an image below to view more details on a specific configuration. The table below breaks down each decorative CBU’s specs. The Regency CBUs are identical to the standard models but include the decorative, finial crown and rounded pedestal.

Model # Installed Height Installed Width Installed Depth Weight (LBS) Tenant Compartment Dimensions Mailbox Compartments Parcel Lockers
3308R71 - ¾ in.31 in.18 - ½ in.1903 in. H x 12 in. W x 15 in. D82
3312R71 - ¾ in.31 in.18 - ½ in.1903 in. H x 12 in. W x 15 in. D121
3316R71 - ¾ in.31 in.18 - ½ in.2153 in. H x 12 in. W x 15 in. D162
3313R71 - ¾ in.31 in.18 - ½ in.2054.75 in. H x 12 in. W x 15 in. D131

CBU Care and Cleaning

Care And Cleaning

You can use a soft cloth dampened with any mild detergent or a properly diluted biodegradable, water-based cleaner (e.g., Simple Green) to clean the surface of all clear aluminum or powder coated commercial mailboxes.

Basic cleaning

  • Wipe off the surface from top to bottom to avoid run-down.
  • Avoid using abrasives, which can damage the mailbox surface.
  • Rinse with plain water and dry the surface.
  • Avoid cleaning during extreme temperature conditions.

Advanced cleaning

  • To varying extents depending on the color, you may be able to remove some spray paint or marker applied graffiti from your CBU’s exterior by using a stronger cleaner like Krud Kutter or a mild petroleum-based solvent like mineral spirits.
  • Test a small, less noticeable area on the CBU first, a few seconds at a time. Do not allow the chemical cleaner to remain on the surface for an indefinite period, as this could damage the CBU’s exterior coating.
  • Remove any residue using a mild cleaner, and then rinse with plain water.

Touch up paint for CBUs

In some cases, you may be able to find a matching touch-up paint for your CBU’s powder-coat finish. We sell a touch-up paint pen and a touch-up paint spray in Postal Grey for the Auth-Florence cluster box. For all other colors, please call us at (866) 707-0008 or open a chat online, as we will need to check directly with the manufacturer to confirm availability and place a special order for the needed touch-up paint, if available.

Cleaning your CBU hardware

If a mailbox lock or door mechanism becomes clogged with ice due to extreme winter conditions, the lock manufacturer suggests using Tri-Flow Superior Lubricant Aerosol.

  • Spray this lubricant directly into the keyhole and onto the key.
  • Slide the key in and out of the lock several times to spread the lubricant.
  • Do not apply too much product, as a small amount is sufficient.
  • Wipe off any excess lubricant from the lock and key.

Benefits of the CBU

Benefits of the Cluster Mailbox

The benefits of centralized mail delivery:

1. Value - It costs less to install per resident than individual curbside mailboxes. Also, mail delivery can often begin even before residences are occupied.

2. Community - CBUs can help build stronger neighbor relationships and trust as residents meet and talk while retrieving their mail.

3. Safety - Highly visible centralized mail centers are safer than isolated delivery locations for residents and help provide greater protection from mail theft and mailbox vandalism.

16 Door CBU

We are a Google Trusted Store

Shop with Confidence

In accordance with the requirements of the Google Trusted Stores program, Google recognizes and certifies Budget Mailboxes for:

  • An excellent shopping experience
  • Reliable on-time shipping
  • Excellent customer service

Customers have the opportunity to opt in to free purchase protection, offered by Google, for eligible purchases up to $1,000.

What does this mean for you?

  • Google can assist customers in the event that they are unsatisfied with their purchase. However, customers usually reach out to us before contacting Google.
  • Our goal is to make sure Google never has to offer support. Why? Because we want our customer support to be so good that no follow-up with Google is needed.
  • In the rare event that Google does provide support for a customer regarding a purchase on our site, we are promptly notified and make every effort to resolve support cases with the customer directly.

So, think of the Google Trusted Stores stamp as more than just a marketing icon. It’s an added layer of FREE protection for your purchase and the assurance that we will go the extra mile to resolve your support case, according to our company policies.

16 Door CBU
For Your Reference:

OUR SKU is Salsbury Industries 3308R-BRZ-U

This item is also sometimes listed under the following manufacturer numbers:

Dimensions & Weight
Ship Weight:
Salsbury 3308R-BRZ-U 8 Door Regency Decorative Cluster Mailbox Bronze
31 in. W x 71.75 in. H x 18.5 in. D
190.00 lbs
Commercial Mailbox
General Category:
Cluster Mailbox
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Frequently Asked Questions

Salsbury 3308R-BRZ-U 8 Door Regency Decorative Cluster Mailbox Bronze
Shipping Information:

Shipping Estimate:

Standard - Usually ships in 3 to 5 business days
Custom - Usually ships in 2 weeks

Stock Status:

In Stock

Ships to:

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With 16,000+ Satisfied Customers, our biggest asset is undeniably our team!. We have outstanding customer service reps that are some of the friendliest and most knowledgeable in the industry.

We value our customer's time; because of this, we are committed to the easiest ordering process imaginable. As a result, past customers love our prompt service and delivery, our expertise, and easy checkout process.

Even though we are known for easy ordering, we're constantly working towards creating an even easier checkout process that allows you to save more time and feel more confident in your buying decision.

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Prompt Delivery - We value your time, so we work hard with our manufacturers to process your order within 24 hours. Often times, we can process your order the same day.

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