Salsbury Maximum Height Surface Mounted 4C Horizontal Mailbox with 20 Doors and 2 Parcel Lockers with USPS Access

Availability: In stock
MODEL # 
3816D-20AFU
$3,950.00 $3,552.97 Free Shipping in September!
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Processing Time According to the Manufacturer:

Usually ships within 2-3 weeks

Learn more about our Estimated Lead Times

Ships directly from the factory floor to ensure the quickest available delivery.

Understanding lead times

Salsbury Maximum Height Surface Mounted 4C Horizontal Mailbox with 20 Doors and 2 Parcel Lockers with USPS Access 

Key Features:

  • Complete Package: Includes a U.S.P.S. approved 4C horizontal mailbox unit and a matching surface-mounted enclosure (minor assembly required).
  • Flexible Installation: Ideal for locations where walls are not deep enough for recessed mounting.
  • Versatile Applications: Perfect for apartments, commercial buildings, and residential developments.
  • Indoor & Outdoor Use: Suitable for both interior and exterior mail delivery areas.
  • Durable Construction: Made from heavy-duty aluminum with stainless steel hardware for long-lasting performance.
  • Powder-Coated Finish: Available in aluminum, bronze, sandstone, and black for a sleek, weather-resistant look.
  • Front Access Design: Mail is accessed through one or two easy-opening master door panels.
  • Secure Locking System: Equipped with a heavy-duty cam lock featuring a dust/rain shield and three keys.
  • Door Sizes: MB1 doors – 3-1/4"H x 12-3/4"W, MB2 – 6-3/4"H x 12-3/4"W, MB3 – 10-1/4"H x 12-3/4"W, MB4 – 13-3/4"H x 12-3/4"W.
  • Multiple Configurations: Standard units available in four heights – 6 Door, 10 Door, 11 Door, and Maximum Height.
  • Custom Options: Additional configurations and colors available upon request.
  • Column Width Options: Available as single-column (1 door wide) or double-column (2 doors wide) units.
  • Parcel Locker Requirement: Meets U.S.P.S. 4C standards requiring 1 parcel locker for every 5 tenant compartments.
  • Parcel Locker Sizes: Available in PL3 (10-1/4"H), PL4 (13-3/4"H), PL4.5 (15-1/2"H), PL5 (17-1/4"H), and PL6 (20-3/4"H).
  • Outgoing Mail Compartment: Includes labeled “Outgoing Mail” slot with weather protection hood.
  • USPS Master Lock: Outgoing mail compartment features a USPS-installed master lock (not for mail distribution).

Optional Accessories:

  • Custom Engraved Placards
  • Custom Engraved Doors – Regular or Black-Filled
  • Replacement Locks
  • Additional Keys
  • Key Blanks

For Your Reference

OUR SKU is Salsbury Industries 3816D-20FU

This item is also sometimes listed under the following manufacturer numbers:

  • 3816D-20AFU
  • 3816D-20ZFU
  • 3816D-20SFU
  • 3816D-20BFU
Weight225 lbs
Brand Salsbury Industries
Shipping Info

Usually ships within 2-3 weeks

Learn more about our Estimated Lead Times
Dimensions 31.75" W x 57.75" H x 17" D
Mailbox Type 4C Horizontal Mailbox
Mailbox Mount Type Surface Mount
Mailbox Material Aluminum
Delivery Type USPS Delivery
Number of Mailbox Doors 19 or More Mailbox Doors
Number of Parcel Lockers 2 Parcel Lockers
4C Horizontal Suite Height Max. Height - 57 1/8" - Standard Height
Unit Height Max. Height Unit
ADA Compliant Units No
Shipping Estimate

Usually ships within 2-3 weeks

Learn more about our Estimated Lead Times
Stock Status In Stock
Ships To Ships to the 48 contiguous United States. For AK or HI delivery, please contact us for a shipping quote.
Ship Method Ships via USPS, UPS, or FedEx Standard Ground.
Shipping Policy

Thank you for your order! We will ship your order using the fastest, safest, and most reliable method possible. Small and medium-sized parcels will usually ship FedEx or UPS Ground, while large commercial items will ship via common freight carriers such as YRC, XPO Logistics, etc.

Every product on our site has been carefully selected to ship by a particular shipping method in order to provide you with an optimal delivery experience.

When your order ships, we will notify you via email. Included in your email will be a tracking number for your shipment. We encourage you to track your package online or on the phone with the carrier. Most companies can provide an estimated delivery date.

View our Full Shipping Policy here.

Return Policy

We offer a 90-day return period from the date of shipment. We will refund your order total, less our cost of shipping the item to you. In most cases, you will be responsible for the cost of shipping the item back to us. Custom orders are non-returnable.

Important: Orders returned without authorization will NOT be processed for credit or refunds. YOU MUST obtain a Return Goods Authorization Number (RGA#) from us so that the credit for the merchandise and any refund can be properly processed.

View our Full Return Policy here.

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