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Security Mailbox - 888.823.1721
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Commercial Mailbox Product Information and Specifications

Click on the links to download detailed information, options and specifications for a specific Commercial Mailbox product category.

  • Cluster Box Units (CBU’s)
  • Regency Decorative CBU’s
  • CBU Specifications and Options
  • 4C Standard Horizontal Mailboxes
  • 4C Custom Horizontal Mailboxes
  • 4C Horizontal Mailbox Specifications and Options
  • 4C Mailbox Enclosures – Surface Mounted
  • 4C Mailbox Enclosures – Free-Standing
  • 4C Pedestal Mailboxes
  • 4B+ Standard Horizontal Mailboxes
  • 4B+ Custom Horizontal Mailboxes
  • Vertical Mailboxes
  • Aluminum Mailboxes – Standard System
  • Aluminum Mailboxes – Rack Ladder System
  • Aluminum Boxes – Data Distribution System
  • Brass Mailboxes
  • Americana Mailboxes
  • Free-Standing Mail Centers
  • Letter Boxes
  • Mail Drops / Receptacles
  • Pedestal Drop Boxes
  • Courier Boxes
  • Mail Package Drops
  • Mail Chests
  • Postal Specialties / Outdoor Parcel Lockers (OPL’s)
  • Mailbox Locks / Key Blanks
  • Cell Phone Lockers

Please contact us directly for questions about discounted pricing and for assistance in placing an order.

Merchant Services


Security Mailbox is a registered DBA of Search Commander, Inc.

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Detailed Product Info

  • Commercial Mailbox Options
  • Residential Mailbox Options
  • Signage Options
  • USPS Installation Guidelines

USPS Info



Residential Mailbox Standards - Domestic Mail Manual - 508 Recipient Services


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