1570-12 DrawingCBU Mailbox Installation Manual | CBU Concrete Foundation Spec and Preparation

The Florence Cluster Box Unit is designed to meet or surpass the latest USPS security standards. Constructed entirely from durable extruded aluminum with stainless steel hinges, these high-security, USPS-approved CBUs ensure long-lasting performance. They feature a front-access master door gate assembly with a built-in hold-open mechanism for added convenience.

Built with security in mind, these units include reinforced tenant compartment locks, a strengthened outer cabinet, and thicker aluminum doors to help prevent theft and vandalism.

Cluster Box Unit Features: 

  • USPS Approved & Postal Certified: Meets or exceeds the latest USPS security standards 

  • Pedestal Included: Ensures stability and installation 

  • Includes All Tenant Locks and Keys: 3 keys per door 

  • Heavy Duty Construction: built with aircraft aluminum and stainless steel hardware and hinges for durability 

  • 5-pin cylinder cam locks with spring-loaded covers

  • Package Lockers & Outgoing Mail Slot: Each cluster box unit includes a package locker(s) with USPS 1172-910 lock and an outgoing mail compartment door with a slot 

  • Front Loading Design: easy access free standing pedestal units

Dimensions: 

  • Unit Size: 30-1/2"W x 62"H (installed height) x 17-7/8"D

  • Tenant Doors: 12-7/8"W x 3-1/4"H x 17-7/8"D

  • Package Locker: 12-7/8"W x 10-1/4" H x 17-7/8"D

  • Pedestal Height: 28-1/2"H

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