Middle Atlantic Solid Front Door Fits 40 Space ERK MRK and WRK Series Racks Black Textured - FD-40

Middle Atlantic FD-40 Solid Front Door for 40U ERK, MRK, and WRK Series Racks

The Middle Atlantic FD-40 is a solid replacement and upgrade front door engineered to fit 40-space ERK, MRK, and WRK series rack enclosures — the right choice when you need a clean, secure panel face on a high-density AV or security equipment installation. At 70.87 inches tall and 25.4 inches wide, the FD-40 spans the full height and width of a 40 RU enclosure, providing complete frontal coverage with no exposed rack unit gaps. If you've been searching for this part, it also appears as FD 40 in some procurement systems.

Key Features

• Full 40U Coverage (70.87 in / 180 cm height): Spans the entire front face of a 40-space ERK, MRK, or WRK series rack — no partial panels, no exposed equipment. One door handles the whole enclosure, which matters in customer-facing server rooms or integration bays where a clean install reflects on the work.
• Low-Profile 1.39-Inch Depth: At just 1.39 inches (3.5 cm) of added depth, the FD-40 won't push your rack footprint into a wall clearance problem. In tight mechanical rooms or server closets where every inch counts, this minimal projection keeps the enclosure within its original floor-plan envelope.
• 25.4-Inch Width (64.5 cm) — Matched to ERK/MRK/WRK Form Factor: Dimensioned precisely for the Middle Atlantic ERK, MRK, and WRK enclosure widths. Drop-in fit without modification — critical on active installations where downtime for rework isn't acceptable.
• Textured Black Powder Coat Finish: The matte textured surface resists fingerprints and surface scuffs better than gloss finishes in high-touch equipment areas. It also blends with standard rack aesthetics in broadcast, integration, and security control rooms without calling attention to itself.
• Integrated Handles: Built-in handles mean tool-free front access for daily maintenance and swap-outs. On a 40U enclosure loaded with patch panels, switches, and NVRs, you want fast, reliable door operation — not a latch system that requires a key or separate hardware.
• 40 lbs Shipping Weight: The door ships at 40 lbs — plan your receiving and installation workflow accordingly. Two-person installation is advisable for a panel of this height and weight, especially when mounting at full rack height.

Integration and Compatibility

The FD-40 is designed specifically for rack enclosures in the Middle Atlantic ERK, MRK, and WRK series at the 40-space (40 RU) configuration. If you are specifying a complete rack system, pair this door with the matching enclosure to maintain warranty coverage and dimensional integrity. For installations requiring rack accessories such as side panels, rear doors, or cable management, verify compatibility within the same series family before ordering.

Integrators deploying NVRs, network switches, and access control equipment in a networked security infrastructure will find the 40U capacity covers most mid-to-large rack builds. If your deployment requires a vented front door for airflow management rather than a solid panel, evaluate the vented door variants in the Middle Atlantic lineup before committing to the FD-40. For guidance on rack planning and equipment layout, consult a rack planning resource before finalizing door selection.

Frequently Asked Questions

Q: Which rack series does the FD-40 fit?

A: The FD-40 is designed to fit the Middle Atlantic ERK, MRK, and WRK series rack enclosures at the 40-space (40 RU) configuration.

Q: What are the exact dimensions of the FD-40?

A: The FD-40 measures 70.87 inches (180 cm) in height, 25.4 inches (64.5 cm) in width, and 1.39 inches (3.5 cm) in depth.

Q: Does the FD-40 include handles?

A: Yes. The FD-40 includes integrated handles for tool-free front access to rack-mounted equipment.

Q: What finish does the FD-40 have?

A: The FD-40 features a textured black powder coat finish for durability and a clean appearance in professional installation environments.

Q: How much does the FD-40 weigh for shipping?

A: The FD-40 has a shipping weight of 40 lbs (18.1 kg). Two-person handling is advisable during installation given the door's height and weight.

Q: Is the FD-40 a solid or vented door?

A: The FD-40 is a solid front door. If your rack build requires front-to-rear airflow through the door panel, you should evaluate a vented door variant instead.

Karl Wilson

The FD-40 is one of those parts that gets specified late in a rack build and causes headaches if you get it wrong. At 70.87 inches tall and 25.4 inches wide, it is dimensioned exclusively for the 40U ERK, MRK, and WRK enclosure footprint — order the wrong RU count or the wrong series and you are looking at a return and a delayed commissioning date. Verify your rack series and space count before adding to cart.

Technical Highlights:

• 1.39-in Depth Addition: Adds just 3.5 cm to the overall rack depth — negligible on most installations, but worth checking against your room's rear wall clearance if the rack is already close to spec.
• Textured Powder Coat Finish: Matte black texture hides surface wear far better than gloss in integration environments where technicians are opening the door repeatedly. Holds up in high-touch service conditions.
• Integrated Handles: No separate handle hardware to source or install. On a 40U enclosure this tall, a reliable handle is a functional requirement, not an aesthetic one.

Deployment Considerations:

• At 40 lbs shipping weight, factor in two-person installation — particularly when the rack is already in its final position in a tight equipment room or closet.
• The FD-40 is a solid panel, not vented. In high-density thermal environments where heat dissipation through the front door matters, a solid door will restrict passive front airflow — confirm your cooling strategy accounts for this before specifying.

The FD-40 is the right call for broadcast integration bays, security control rooms, and enterprise IT closets where rack aesthetics and physical equipment security matter and active front-door ventilation is handled by the room's HVAC rather than the enclosure itself.