Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the redux-framework domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the acf domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the woocommerce domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the workreap domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the customized-task-offer domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the workreap-hourly-addon domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/runcloud/webapps/uplancer/wp-includes/functions.php on line 6131
Cluster Box Units (CBU)

Cluster Box Units (CBU)

★★★★★ 4.6 61 reviews
$90.00
Price when purchased online
Free shipping Free 30-day returns
Sold and shipped by uplancer.com
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
$90.00
Price when purchased online
Free shipping Free 30-day returns
How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives Apr 26
Free
Pickup
Check nearby
Delivery
Not available
Sold and shipped by uplancer.com
Free 30-day returns Details

Product details

Management number 213759776 Release Date 2026/04/12 List Price $36.00 Model Number 213759776
Category
  1. Tools & Home Improvement
  2. Hardware
  3. Mailboxes & Accessories
  4. Multi-Family & Cluster Box Mailboxes

Our Cluster Box Units (CBUs) are all custom-built and fully welded from a 1/4" steel frame with 3/16" steel-reinforced doors. They have no rivets, spot welds, or removable parts. The shell is over 3-4 times thicker than the next heaviest duty CBU available. If you're interested in a quote, please let us know.

  • Handcrafted with a 1/4" steel frame and 3/16" steel-reinforced doors
  • No removable parts: no rivets or spot welds
  • Exceptionally robust: shell is 3-4x thicker than competitors
Color Gray
Material 1/4" steel frame with 3/16" steel-reinforced doors
Brand Name Fort Knox Mailbox
Manufacturer Fort Knox Mailbox

Cluster Box Units (CBU)

Bestseller ranking

Multi-Family & Cluster Box Mailboxes

1
Horizontal 4C Mailbox Unit - 6 Door High (24.5 Inches) - Double Column - Custom Aluminum - Front Loading - USPS Access by Spill 911

Horizontal 4C Mailbox Unit - 6 Door High (24.5 Inches) - Double Column - Custom Aluminum - Front Loading - USPS Access by Spill 911

★★★★☆ (41)
$36.00
2
Salsbury Industries 3811D-10AFU Surface Mounted Horizontal Mailbox, Aluminum

Salsbury Industries 3811D-10AFU Surface Mounted Horizontal Mailbox, Aluminum

★★★★☆ (7)
$36.00
3
Centralized Mail Delivery - Private Access

Centralized Mail Delivery - Private Access

★★★★★ (20)
$36.00
4
Salsbury Industries Regency Decorative Cluster Box Unit, 13 Doors with Parcel Locker, Black, USPS Access by Salsbury Industries

Salsbury Industries Regency Decorative Cluster Box Unit, 13 Doors with Parcel Locker, Black, USPS Access by Salsbury Industries

★★★★☆ (18)
$36.00
5
Aluminum Horizontal Mailbox - 14 Doors (13 Usable) - Spill 911 Inc.

Aluminum Horizontal Mailbox - 14 Doors (13 Usable) - Spill 911 Inc.

★★★☆☆ (13)
$36.00
6
11-Door Free-Standing 4C Mailbox with 2 Parcel Lockers (Bronze) USPS Access by Salsbury Industries

11-Door Free-Standing 4C Mailbox with 2 Parcel Lockers (Bronze) USPS Access by Salsbury Industries

★★★★☆ (7)
$36.00
See the same product from Multi-Family & Cluster Box Mailboxes

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

4.6 out of 5
★★★★★
61 ratings | 25 reviews
How item rating is calculated
View all reviews
5 stars
84% (51)
4 stars
3% (2)
3 stars
2% (1)
2 stars
1% (1)
1 star
10% (6)
Sort by

There are currently no written reviews for this product.