16 Door Postal Products Unlimited F-Spec Cluster Mailbox with Pedestal - Type 3 CBU

Sixteen-Door USPS F-Spec Cluster Mailbox — Available in Four Finishes

The Postal Products Unlimited 16-Door F-Spec Cluster Mailbox is the highest-capacity unit in our F-Spec range — USPS-approved as a Type 3 CBU, with sixteen tenant compartments, two parcel lockers, and an integrated outgoing mail slot, all on one pedestal-mounted weatherproof cabinet. Choose the powder-coat finish that matches your property — Grey, Bronze, Black, or Sandstone — and we'll ship in 2–3 business days with standard numbering.

About the Manufacturer — Postal Products Unlimited

Postal Products Unlimited (PPU) is a USPS-approved manufacturer of commercial cluster mailboxes with a 25+ year history and ISO 9001:2015 certified quality management. PPU's F-Spec CBUs share the USPS specification with Auth-Florence's 1570-series and Salsbury Industries' 33-series cluster mailboxes — same dimensions, same door counts, same security features, same USPS approval — and give you a third brand option when matching an existing on-property mailbox or sourcing a backup supplier. We carry the full line in all four powder-coat finishes.

Choose Your Finish

• Grey — neutral, versatile across brick, beige, and stucco palettes
• Bronze — warm metallic for traditional and historic-district properties
• Black — modern matte for contemporary apartments and mixed-use construction
• Sandstone — soft beige for stucco, adobe, and warm-color exteriors

What's Included

• USPS-approved CBU with 16 tenant compartments
• 2 parcel lockers (10¼" tall and 13¾" tall)
• 1 outgoing mail slot
• Heavy-duty pedestal, rubber gasket, and anchor template
• USPS-developed locks with weather shield (3 keys per door)
• Installation guide and template

Built-in Security

• 360° wrapped hinges block hinge-pin attacks
• Reinforced lock cam and minimized pry geometry
• Overlapping master doors prevent forced-entry leverage
• Strengthened tenant gaps to defeat fishing attacks
• Dust- and rain-sealed locks for all-weather service

Specifications

• USPS Compliance: Approved F-Spec, Type 3
• Tenant doors: 16 @ 12⅞" × 3"
• Parcel lockers: 2 (10¼" and 13¾" tall)
• Outgoing slot: 10¾" × 1"
• Assembled dimensions: 30½" L × 18⅞" W × 62" H
• Weight: 114 lbs
• Construction: Stainless steel and aluminum, corrosion-resistant
• Available finishes: Grey, Bronze, Black, Sandstone
• Cross-reference: Equivalent to Auth-Florence 1570-16 and Salsbury 3316

Downloads & Documentation

• CAD Drawings (PDF)
• CAD Drawings (DXF)
• CAD Drawings (DWG / AutoCAD)
• Main Instructions (PDF)
• Installation Instructions (PDF)
• Engraving Instructions (PDF)

Ships in 2–3 business days with standard numbering. Custom numbering is available on request and may take up to an additional 5-6 days.