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16 Door F-Spec Cluster Box Unit - NO PEDESTAL

16 Door F-Spec Cluster Box Unit - NO PEDESTAL

Part #: N1027876
Best-Seller & Free Shipping!
Volume Discount Pricing:
  • Buy 0 for $2,000.00 each and save 4%
  • Buy 2 for $2,050.00 each and save 2%
  • Buy 6 for $2,025.00 each and save 3%

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Volume Discount Pricing:
  • Buy 0 for $2,000.00 each and save 4%
  • Buy 2 for $2,050.00 each and save 2%
  • Buy 6 for $2,025.00 each and save 3%

Officially Licensed & USPS Approved 16 Door Cluster Mailbox - Black (Without Pedestal)

This 16 door cluster box unit (CBU) is manufactured by Postal Products Unlimited, Inc. to U.S.P.S. “F” Specifications and is an officially licensed and authorized product of the U.S. Postal Service for centralized mail delivery.

  • USPS Approved Cluster Mailbox
  • Identical to Auth-Florence CBU model 1570-16 and Salsbury Industries CBU model 3316
  • Ideal for commercial and residential developments for centralized mail delivery
  • Can be used in large groupings or alone to accommodate every project type
  • Postal Products Unlimited is an ISO 9001:2015 certified company and has excelled in the field of mailbox manufacturing since 1986

Cluster Mailbox Features:

Material & Finish:

  • Constructed of corrosion resistant, heavy duty aluminum and stainless steel hardware
  • Durable, weather and scratch resistant powder coat finish available in sandstone, black, and bronze
  • 1/10” thick robotically welded aluminum cabinet and ⅛” thick aluminum doors

Loading, Mounting, & Access

  • Front-loading, easy-to-use, pedestal mounted (freestanding) mailbox
  • Accessed from the front through two (2) easy opening master door panels
  • Includes easy release handle to open master gate
  • Includes letter carrier access door
  • USPS master arrow lock provided and installed by local postal officials
  • USPS will only have the keys to USPS master arrow lock

Tenant Doors

  • Includes 16 tenant doors: CBU A size doors measuring 12 ⅞” W x 3 ¼” H
  • Tenant doors include reinforced, heavy duty 5-pin cylinder cam lock with spring loaded covers (dust/rain shield)
  • Each tenant door includes three (3) keys

Parcel Lockers

  • Includes 2 fully integrated parcel lockers: Small (12 ⅞” W x 10 ¼” H) and Large (12 ⅞” W x 13 ¾”H)
  • Parcel lockers include key trapping lock with dual, captive locking system

Outgoing Mail

  • Includes one compartment and mail slot for collecting outgoing mail: 11 ¾” W x ¾” H
  • Outgoing mail slot includes a weather protection hood (climate shield)
  • Aluminum comb provides anti-fish plate to prevent tampering

Door ID Options

  • Standard numbering includes silver adhesive decals with black lettering: 1-16, 1P, 2P
  • Custom numbering is available, please call us at (800)-229-4500

Additional Security & Weather Resistant Features

  • Master doors overlap when shut to prevent theft and prying
  • Improved and stronger tenant gaps
  • Reduced pry points
  • Tenant and parcel doors constructed with reinforced corners and 360-degree wrap-around hinges for extra security
  • Features new upgraded tenant locks developed by the USPS
  • CBU top sloped for for precipitation runoff

Installation & Anchor Bolts

  • Does not include matching aluminum pedestal
  • Professional installation is available nationwide, please call us at (800)-229-4500.
  • Anchor bolts are not included
  • L-bolt anchors are available for when new concrete pads are being poured for your cluster mailboxes
  • Wedge Stud Anchors are available for when an existing concrete pad is being used and is in good condition (meets postal approval for cluster mailboxes)


Need help ordering or still have questions about our 16 door cluster mailboxes (CBU)? Call us at (800)-229-4500 or chat live with one of our mailbox specialists.


ADA Compliant Yes
Assembled Depth 17.8750
Assembled Height 48.1250
Assembled Weight 158.0000
Assembled Width 30.5000
Material Aluminum
Number of Doors 16
USPS Approved Yes

*FREE DOCK-TO-DOCK SHIPPING TO THE CONTINENTAL UNITED STATES ONLY. Does not include the following options: Liftgate Delivery, Residential Delivery, Construction Site Delivery, Limited Access Delivery, Notify Prior To Delivery, Inside Delivery, Guaranteed Delivery, California Compliance Surcharge. If options are needed call for quote.

Days to Ship 3