16 Door Sandstone Postal Products Unlimited F-Spec Cluster Mailbox with Pedestal - Type 3 CBU
Sandstone 16-Door USPS F-Spec CBU — Warm Neutral, Maximum Capacity
The Postal Products Unlimited 16-Door F-Spec Cluster Mailbox in Sandstone serves up to sixteen tenant deliveries from a single pedestal-mounted unit in a soft, neutral sandstone powder-coat finish. Two parcel lockers and an integrated outgoing mail slot mean residents and the USPS carrier can complete every common mail-room transaction at one weatherproof cabinet. The sandstone color works particularly well with stucco, adobe, and warmer brick — a forgiving finish on properties where standard grey or black would read as too cold or industrial.
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.
What's Included
- USPS-approved CBU with 16 tenant compartments
- 2 parcel lockers (10¼" and 13¾" tall)
- 1 outgoing mail slot
- Pedestal, rubber gasket, and template
- USPS-developed locks with sealed weather shield (3 keys per door)
- Installation guide and template
Anti-Tamper Construction
- 360° wrapped hinges resist hinge-pin attacks
- Reinforced lock cam and minimized pry geometry
- Overlapping master doors prevent forced-entry leverage
- Strengthened tenant gaps defeat fishing tools
- Dust- and rain-shielded 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
- Finish: Sandstone powder coat
- Cross-reference: Equivalent to Auth-Florence 1570-16 and Salsbury 3316
Best Fit For
Stucco apartment construction, southwestern architecture, beige-brick HOAs, sand-toned commercial property, and developments where warm-neutral hardware better matches the building palette.
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.






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