Salsbury Maximum Height Recessed Mounted 4C Horizontal Mailbox | 6 Doors and 2 Parcel Lockers USPS Access - Front Loading

The Salsbury 3716S-06AFU is a USPS-approved, recessed-mounted 4C horizontal mailbox manufactured to USPS-STD-4C specifications for new construction and major renovation projects in apartments, commercial buildings, and residential developments. Configured as a single-column, maximum-height unit, it accommodates 6 MB1 tenant compartments and 2 parcel lockers, 1 PL3 and 1 PL4.5, in a narrow front-loading, wall-recessed footprint suited to smaller-unit-count buildings or installations where column width is constrained. The PL4.5 satisfies the USPS minimum 15" parcel locker height requirement for the 1:5 ratio, with the PL3 providing additional package capacity beyond that threshold. Constructed from heavy-duty aluminum with stainless steel hardware, the unit includes factory-installed trim, a solid rear cover, and a 4C connector kit for linking multiple units. Security & Construction Features USPS-approved outgoing mail/carrier access door with factory-provisions for USPS-installed master lock 6 tenant doors each fitted with a heavy-duty cam lock with dust/rain shield and 3 keys 2 integrated parcel lockers, 1 × PL3 (10¼" H) and 1 × PL4.5 (15½" H); PL4.5 meets USPS 1:5 ratio requirement Outgoing mail slot: 10¾" W × ¾" H with weather protection hood Heavy-duty aluminum construction with stainless steel hardware Durable powder-coated finish available in aluminum, bronze, black, and sandstone Factory-installed ¾" W × ¼" D trim with solid rear cover for clean recessed installation Includes 4C horizontal mailbox connector kit for linking multiple units (hardware included) ADA height compliant units available Manufactured to USPS-STD-4C Specifications ISO 9001:2015 certified; Specifications Specifications Dimensions 17" W × 57.125" H × 16.5" D Weight 85 lbs Number of Tenant Doors 6 (MB1 Size) MB1 Door Dimensions 13¼" W × 3¼" H each Number of Parcel Lockers 2 (1 × PL3, 1 × PL4.5) Parcel Locker Heights PL3: 10¼" H  |  PL4.5: 15½" H (PL4.5 meets USPS 1:5 ratio requirement) Column Configuration Single Column (1 Door Wide) Unit Height Category Maximum Height Lock Type Heavy-Duty Cam Lock with Dust/Rain Shield (3 Keys per Door) Outgoing Mail Slot 10¾" W × ¾" H with Weather Protection Hood Loading Type Front Loading Mount Type Recessed Mounted Access Type USPS Access – USPS Master Lock Installed by Carrier Indoor / Outdoor Use Both Primary Material Heavy-Duty Aluminum Hardware Stainless Steel Finish Powder Coated – Aluminum Available Colors Aluminum, Bronze, Sandstone, Black Intended Use Apartments, Commercial Buildings, Residential Developments – New Construction and Major Renovations What's Included Mailbox Unit, Factory-Installed Trim (¾" W × ¼" D), Solid Rear Cover, 4C Horizontal Mailbox Connector Kit Model Number 3716S-06AFU Compliance & Certifications USPS Approved | ISO 9001:2015 Certified | ADA Height Compliant Units Available Lead Time Usually ships within 1-2 weeks Downloads More Product Information Product Overview Installation Instructions Technical Drawing ADA Compliant Units Product Configurations