Cluster Box Unit - 12 A Size Doors - Type II - Grey - USPS Access

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Cluster Box Unit - 12 A Size Doors - Type II - Grey - USPS Access

(View all from Salsbury Industries)
SKU: WL-3312GRY-UBM  |  View All 12 Tenant Door Salsbury Cluster Box Units
Cluster Box Unit - 12 A Size Doors - Type II - Grey - USPS Access
Pedestal Included with this Salsbury CBU
List Price:
You Save:

$338.03 (20%)

Volume Discount Pricing
2 - 5$1,244.50
6+ $1,220.33
USPS Approved
Select Option
In Stock
According to manufacturer:
Standard - Usually ships in 2 to 3 business days
Custom - Usually ships in 2 weeks
Note: Products ship directly from the manufacturer, Salsbury Industries
Shipping Estimate Information

Cluster Box Unit - 12 A Size Doors - Type II - Grey - USPS Access

Salsbury 3300 Series Cluster Box Units (CBU's) - U.S.P.S. Access


  • Salsbury Industries is officially licensed and authorized by the U.S. Postal Service to manufacture Cluster Box Units (CBU's)
  • Manufactured by Salsbury Industries to U.S.P.S. "F" Specifications
  • License # 1CDSEQ-08-B-0026
  • Ideal for commercial and residential developments
  • Include matching pedestal
  • Constructed of heavy duty aluminum and stainless steel hardware
  • Feature a durable powder coated finish available in sandstone, bronze, green, black, white and gray (for replacement units only)
  • Accessed from the front through 2 easy opening master door panels
  • Available in "A" size doors (12-3/4" W x 3-1/8" H) and larger "B" size doors (12-3/4" W x 4-7/8" H)
  • Doors include a heavy duty 5 pin cylinder cam lock with a dust/rain shield and 3 keys
  • One compartment is labeled "Outgoing Mail" and includes a weather protection flap and an 11-3/4" W x 3/4" H mail slot
  • Include a carrier access door for U.S.P.S. installed master lock
  • Include 1 or 2 fully integrated parcel locker(s)
  • Salsbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936


  • Custom engraved placards
  • Custom engraved doors - regular
  • Custom engraved doors - black filled
  • Replacement locks
  • Additional keys
  • Key blanks
  • Regency CBU decorative top
  • Regency CBU decorative pedestal cover

Nationwide Mailbox Installation Services

Our Mailbox Installation Service

  • Licensed & Insured
  • Trained Installation pro
  • Available in your area
View Details Below

On our CBU product pages, you will see an option labeled, “Need professional mailbox installation?” By making this option available on the product page, our goal is to be the one-stop shop for your cluster mailbox needs. We offer the following installation options:

Option 1 - Installer mounts pedestal on existing anchor bolts

Typically, you will select this option if you are replacing a CBU where you will reuse the existing anchor bolts embedded in the concrete. The installer will mount the pedestal on the existing bolts and attach the mailbox to the pedestal.

Option 2 - Installer mounts pedestal and installs anchor bolts

In this situation, the installer will drill the anchor bolts into the concrete pad. You will need to procure the anchor bolts beforehand -- you can purchase these directly from us with your CBU order.

Option 3 - Installer removes existing anchor bolts and replaces them

This scenario is similar to Option 2 listed above, with one exception: the installer will remove the existing anchor bolts from the concrete pad prior to installing the new anchor bolts.

Scenarios where this Option may be required:

  • You are upgrading from an older CBU model (Auth-Florence 1575 or NDCBU) where the new CBU pedestal cannot be mounted on the existing anchor bolts.
  • Any situation where the CBU Pedestal cannot be installed over the existing anchor bolts.

Mailbox Installation FAQs

What's included in mailbox installation?

  • Unpacking new CBU mailbox purchased from
  • Installation of CBU pedestal onto the existing concrete pad* via one of the options listed above
  • Mounting CBU box to pedestal

Are your installers licensed and insured?

Yes. We only work with licensed and insured mailbox installers.

Do you offer service in my area?

Yes, unless you are outside the contiguous US. We offer installation services for our customers within the 48 contiguous United States.

Will the installer apply lettering to the mailbox?

No. Installation does not include applying the standard decals supplied with your CBU. You will need to apply the numbers after the unit is installed.

Will the installer remove my old cluster mailbox?

If you are replacing old or damaged cluster mailboxes (pedestal CBU mailboxes), we can ask the installer to remove them from the location as long as we are notified ahead of time. So, if you need the old units removed, please let us know as soon as possible. Please note: an additional charge of $100.00 will apply to your installation service for removal of old cluster mailboxes.

Why should I hire a pro to install my mailbox?

Installing a pedestal mailbox can be complicated. A professional can take care of it more efficiently, saving you time and money.

Will the installer supply any materials I need to secure my mailbox?

No, you need to provide the anchor bolts for this service. Unless you already have anchor bolts, we recommend you purchase anchor bolts with your CBU order. If additional supplies are needed at the site, the provider may be able to supply them at an additional cost. Please also ensure that the location is near a usable power source, if possible.

Will you communicate with the installer on my behalf?

Yes. While it is expected that the customer deals with the installer on location, we take it as our responsibility to communicate with the installer on your behalf prior to the appointment. We will also follow up with you to confirm the appointment and any other details.

Will my mailbox be installed on the same day as delivery?

No. Same-day installation is not available. Installation will be scheduled after the delivery of your mailbox. In most cases, installation is completed within one week following delivery.

* It is the customer’s responsibility to ensure that the location for installed cluster mailboxes meets USPS requirements. Contact your local post office if you have questions about their specific requirements when installing CBUs at your location.

Dimensions & Weight
Cluster Box Unit - 12 A Size Doors - Type II - Grey - USPS Access
62.75 in. H x 30.5 in. W x 18 in. L
159.50 lbs
General Category:
Cluster Mailbox
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Shipping Information:

Shipping Estimate:

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

Stock Status:

In Stock

Ships to:

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Ship Method:

FedEx/UPS (Learn More)

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The lead times listed on this product page represent the best-case scenario for shipping estimates. While we may show that a product "usually ships" within a given period, this period should not be confused with a delivery estimate. Rather, we expect the product to ship from the manufacturer's warehouse within this time-frame.

What does this mean for you? Once you place an order on our site, we begin processing the order with the manufacturer. The processing lead time we list on the product page is the most current estimate from the manufacturer regarding the product.

Note: If you purchase a commercial mailbox from us and decide to cancel because a competitor lists a "faster" lead time on their site, you may be delaying the time it will take to receive your mailboxes.
Why? Because you are placing a new order to be sent to the same manufacturer for processing.


How long will it take to receive my commercial mailbox?

When you order a commercial or cluster mailbox, we process the order with the manufacturer within 1 business day. Once processed, the order usually ships in the time-frame listed on the product page. Since Cluster Mailboxes are large items, they ship via freight carriers. This means that the transit times for these will usually be 5 to 7 business days.

A few things to note about purchasing a cluster mailbox or similar large, commercial-grade product:

  • The freight carrier will call the number you list on the shipping address a day before delivery to schedule a delivery appointment with you.
  • The manufacturer ships using their chosen freight carrier depending on the products ordered and the delivery location.
  • The majority of online retailers who sell commercial mailboxes (CBUs, etc.) ship directly from the manufacturers, just as we do.
  • If you choose professional mailbox installation with your commercial mailbox purchase, please note that same-day installation is not available. Installation will be scheduled after the delivery of your mailbox. In most cases, installation is completed within one week following delivery.

How can I estimate my shipment's transit time?

Depending on the carrier and your location, transit times will vary. Delivery estimates are best projected using your carrier tracking number. Once your order ships, we'll send you a shipping confirmation email that includes your carrier (FedEx, UPS, YRC, etc.) and tracking number.

Note: If you place an order with us and do not receive an Order Confirmation email, check your spam inbox. If you still do not see an Order Confirmation email in your inbox, contact us right away at (866) 214-0017. We will provide you with your Order Number and any other details you need.

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