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Rear-loading Private Use Horizontal Mailboxes – 21 Doors

dormitory mailboxes

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21 Door Private Use Rear-Loading Cluster Mailboxes in Anodized Aluminum
21 Door Private Use Rear-Loading Cluster Mailboxes in Dark Bronze
Product Number:
38.7500 Inches.
13.7500 Inches.
16.5000 Inches.
63 lb(s).
Select Finish :
1 - 4 $504.00
5 and more Call For Price
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Product Features

  • 7-high x 3-wide configuration
  • Module contains a total of 21 usable mailboxes (5” high x 4” wide x 15 ½” deep)
  • Standard units come with no rear cover and are open backed. Locking hinged rear door equipped with a commercial master lock is available for an upcharge – Call for pricing
  • Standard Clear Anodized Aluminum Finish. For an upcharge, also available in Dark Bronze. Click HERE to view a color chart.
  • Click here to view or download a shop drawing of this product – Please call for a shop drawing of multiple unit side-by-side configurations

Additional file downloads below

Indoor Horizontal Mailbox with 21 Units

Indoor Horizontal Mailbox with 21 UnitsKeep private mail organized with the Rear-loading Private Use Horizontal Mailboxes from US Mail Supply. These mailbox units are favorites in upscale apartment complexes, university housing, and shared office buildings across the United States; providing easy, efficient access to tenant mail. No matter the specific application, US Mail Supply has an assortment of indoor mailboxes sure to fit you budget, multi-tenant, and space needs.

Need help? Looking for a custom configuration? Contact us today or use our online mailbox design assistant.

This 1700 Series module contains 21 usable mailboxes, configured 7 compartments high and 3 wide, each 5” x 4” and 15 ½” deep. Rear-loading, an open back makes for easily accessible use and secure private mail distribution. Standard mailboxes are available in Clear Anodized Aluminum, but are available in Dark Bronze for a small upcharge. Please contact us for specific details on prices.

Order a 21-Door Private Use Horizontal Mailbox unit from US Mail Supply today and secure your mail in the best private delivery mailboxes available.