Lowell Manufacturing LDDF-21 Door-Dual Frame for 21U Rack, Mounts 7U Top & 14U Bottom Door, Black

SKU: LWLDDF21 MFR: LDDF-21
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Key Features

  • Enhance your 21U rack with this durable steel door frame, ensuring long-lasting protection.
  • Maximize compatibility; this dual frame fits Lowell's LER, LGR, LPR, LSER, LSGR & LWR rack series.
  • Simplify installation with included hardware; get your 21U rack door mounted quickly and securely.
  • Optimize airflow within your rack system using this door frame, maintaining ideal equipment temps.
  • Made with certified U.S. steel, this rack accessory guarantees top-tier quality and compliance.
  • Enjoy peace of mind with our 1-year warranty, protecting your investment in this door frame.
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Special Order?Estimated to Ship: 08/24/2025
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Lowell Manufacturing LDDF-21 Specifications

  • Compatibility

    21U Rack

  • Construction

    Steel

  • Compliance & Certification

    Made in the U.S.A.
    Certified U.S. steel

  • For rack Series

    LER, LGR, LPR, LSER, LSGR and LWR

About Lowell Manufacturing LDDF-21

Before you consider any other rack frame, take a look at the LDDF-21 Door-Dual Frame for 21U Rack. This versatile frame is designed to fit most Lowell 23-inch wide racks, offering the unique ability to mount two short front doors in a single Dutch door arrangement. This feature allows for the doors to be keyed differently, providing enhanced security by allowing you to secure the top and bottom sections separately.

But the LDDF-21 is not just about security. It also offers flexibility. You can use it to mount a single short door, leaving the other section open for easy access to your equipment. This dual-door frame is an ideal solution for separating and securing equipment in a single rack installation.

Whether you need to mount a single short door, two short doors keyed the same, or two short doors keyed differently, the LDDF-21 can accommodate your needs. It's compatible with the Lowell rack series noted below, making it a versatile addition to your setup.

The 1-inch (25mm) deep frame can be factory-installed when ordered with a rack, or field-installed without the need for drilling or removing pre-wired equipment. This makes the LDDF-21 a convenient and hassle-free choice for your rack installation needs.

The frame surface-mounts using four 10-32 x 5/8" hex washer-head machine screws, which are included for your convenience. These screws attach to the top and bottom nutserts on the rack, typically used to mount door hinges.

In summary, the LDDF-21 Door-Dual Frame for 21U Rack is a versatile, secure, and convenient solution for your rack installation needs. Its unique design and compatibility with Lowell racks make it a standout choice in the market.

Lowell Manufacturing LDDF-21 Features

  • Frame mounts without using panel mounting space
  • Included security bracket mounts to top of lower door projecting into rack within 1/4 inch of mounting rails thus securing contents of the lower section when the top door is open
  • Security bracket is factory-installed when LDDF frame is ordered with a rack but can be field-installed (using two screws), moved to bottom of upper door, or omitted from assembly
  • Equipment with protruding knobs may need to be re-positioned to accommodate security bracket
  • Order doors separately

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Enhance your 21U rack with this durable steel door frame, ensuring long-lasting protection.
  • Maximize compatibility; this dual frame fits Lowell's LER, LGR, LPR, LSER, LSGR & LWR rack series.
  • Simplify installation with included hardware; get your 21U rack door mounted quickly and securely.
  • Optimize airflow within your rack system using this door frame, maintaining ideal equipment temps.
  • Made with certified U.S. steel, this rack accessory guarantees top-tier quality and compliance.
  • Enjoy peace of mind with our 1-year warranty, protecting your investment in this door frame.

What's in the box:

  • Lowell Manufacturing LDDF-21 Door-Dual Frame
  • Security Bracket
  • 4x 10-32 x 5/8 " Hex Washer-Head Machine Screws
  • Lowell Manufacturing 1 Year Limited Warranty