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USPS Key Keeper Boxes

A USPS key keeper provides a secure and standardized solution for granting mail carriers access to locked buildings, lobbies, or mailrooms. Instead of distributing numerous keys, a single, secure key mailbox is installed, allowing authorized access while maintaining building security. At US Mail Supply, we offer USPS-approved key keepers designed for durability and compliance.

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    Silver metallic wall-mounted mailbox with a partially open door and circular handle.

    Recess Mount Key Keeper

    Product #  KKA

    Available Finish options

    • Anodized Aluminum swatch
      Anodized Aluminum
    $120.00
    Free Shipping  on this item!
    Call For Pricing  on 2+ units!
    Additional Discounts  for Members!
  • Silver mailbox door with a black circular lock, USPS access logo in the corner.

    Recess Mounted Key Keeper

    Product #  1090

    Available Finish options

    • Anodized Aluminum swatch
      Anodized Aluminum
    $75.00
    Call For Pricing  on 2+ units!
    Additional Discounts  for Members!
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    Metallic wall-mounted box with a central circular hole and textured frame.

    Surface Mount Key Keeper

    Product #  KKASMA

    Available Finish options

    • Anodized Aluminum swatch
      Anodized Aluminum
    $120.00
    Free Shipping  on this item!
    Call For Pricing  on 3+ units!
    Additional Discounts  for Members!
  • Silver metal mailbox with a black circular lock, USPS access logo in the corner.

    Surface Mounted Key Keeper

    Product #  1080

    Available Finish options

    • Anodized Aluminum swatch
      Anodized Aluminum
    $75.00
    Call For Pricing  on 4+ units!
    Additional Discounts  for Members!
USPS Logo

USPS Mailboxes

Subject to local regulations and installation requirements, our products can comply with USPS standards, as defined by the Postmaster General.

Please note that the USPS periodically updates mailbox standards and guidelines. Before proceeding with mailbox projects, we recommend you consult with your local Postmaster to comply with your specific area guidelines. US Mail Supply experts are standing by to help you navigate the product selection and installation process.

Choose the Right Key Keeper for Your Building

US Mail Supply carries both a surface mount and a recess mount key keeper. These USPS approved key keepers are commonly used to give mail carriers secure access to the key of a locked building so they can deliver the mail, although they can also be used for residents of a building to access a key.

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Choose the Right Key Keeper for Your Building

Key keepers provide a secure location for storing building, mailroom, or access keys while allowing authorized individuals to retrieve them when needed. We offer two installation styles designed to accommodate different building types, renovation requirements, and security preferences.

Both models are constructed from durable extruded aluminum and feature a standard anodized aluminum finish for long-lasting performance and a professional appearance.

Surface Mount Key Keeper

Surface mount key keepers are installed directly onto a wall or door frame, making them an excellent solution for existing buildings where wall modifications are not practical. This installation method provides a straightforward retrofit option while maintaining secure key access.

Recess Mount Key Keeper

Recess mount key keepers are installed inside a wall opening, creating a flush appearance that offers a clean, integrated look. This option is ideal for new construction projects, remodels, or applications where aesthetics and additional protection are priorities.

Key Keeper Features & Specifications

Our key keeper boxes are engineered for durability, security, and long-term reliability. Units can be configured for USPS carrier access using an Arrow Lock or for private access using a commercial lock and key system.

  • Construction: Heavy-duty extruded aluminum.
  • Finish: Standard anodized aluminum.
  • USPS Access: Prepared for installation of an official USPS Arrow Lock. Approval from your local Postmaster is required before ordering.
  • Private Access: Supplied with a commercial lock and keys for private use.
  • Exterior Dimensions: 6¾” H × 6¼” W × 2⅜” D.
  • Interior Dimensions: 4⅞” H × 4⅛” W × 2″ D.
  • Rough Opening (Recess Mount): 5⅛” H × 4⅜” W × 2¼” D.

Why Choose US Mail Supply for Your Key Keeper?

US Mail Supply provides dependable key keeper solutions designed to support USPS mail delivery requirements and secure building access. Whether you need a USPS-approved installation or a private access solution, our team can help you select the right product for your application.

  • USPS Compliance Expertise: Products designed to meet USPS requirements for approved installations.
  • Knowledgeable Support: Guidance on USPS approval requirements, lock options, and installation considerations.
  • Durable Construction: Built from high-quality materials to withstand frequent use and resist tampering.
  • Reliable Security Solution: A simple and effective way to provide controlled key access for authorized users.

Frequently Asked Questions About Key Keeper Boxes

How does a USPS key keeper work?

A property manager places a building or mailroom key inside the key keeper. The USPS installs its authorized Arrow Lock on the unit, allowing mail carriers to access the key, complete mail delivery, and return the key securely after use.

Do I need approval from the Post Office before purchasing a key keeper?

Yes. If the key keeper will be used with a USPS Arrow Lock, you should consult your local Postmaster before purchasing. USPS approval is typically required to confirm the unit’s location and intended use.

What is the difference between a surface mount and a recess mount key keeper?

A surface mount key keeper is attached directly to the face of a wall, while a recess mount key keeper is installed within a wall opening and sits flush with the surface. The best option depends on your building’s construction and design preferences.

Can a key keeper be used for private access instead of USPS mail delivery?

Yes. Key keepers can be ordered with a commercial lock and key system for private access. They are commonly used by property managers, businesses, real estate professionals, and facilities that require secure key storage and controlled access.