Middle Atlantic Rackrail Cage NUT 44 RU DRK Series Heavy-gauge 6MM Cage NUT Rail - DRK19-RR44PRO

Middle Atlantic DRK19-RR44PRO 44U Cage Nut Rack Rail, DRK Series

The Middle Atlantic DRK19-RR44PRO is a 44U heavy-gauge cage nut rail designed specifically for the Middle Atlantic DRK series rack enclosures. At 77 inches of usable height across 44 rack units, this rail handles the full vertical run of a tall open-frame or enclosed rack build — without compromising on structural integrity. If you're deploying dense AV, networking, or security infrastructure that needs to hold position during a seismic event, the seismic rating on this rail is the spec that changes your conversation with the building engineer.

Key Features

• 44U / 77-Inch Usable Height: Covers the full vertical span of a standard tall rack column — no partial coverage, no gap filler required. All 44 rack units are available for equipment, which matters when you're maximizing density in a head-end room or server closet.
• Cage Nut Rail Type: Cage nut rails accept standard M6 cage nuts and matching screws, giving you tool-and-part compatibility with virtually every 19-inch rack-mount device on the market. If your team stocks standard cage nut sets, you're already equipped to populate this rail.
• Heavy-Gauge Construction: The rail is built from heavy-gauge steel — not stamped sheet metal — which translates directly to less flex under load. Rack equipment shifts and loosens over time when rails give; this gauge holds alignment across the full 44U span.
• Black E-Coat Finish: Electrophoretic coating (e-coat) bonds to the steel at the molecular level rather than sitting on top like paint. It resists chipping during installation and won't flake into rack-mounted gear below — a real-world concern when you're working overhead in a tight rack bay.
• Seismic Rated — ASCE 7-10 / OSHPD 96-967: This is the spec that matters for California hospital, government, and commercial high-rise installs. OSHPD 96-967 certification means the rail has been tested to meet California's Office of Statewide Health Planning and Development seismic requirements. ASCE 7-10 compliance satisfies the structural loading standard referenced in most US building codes. If your project requires seismic documentation, this rail ships with a traceable certification number — not just a marketing claim.
• 5.41-Inch Width: Standard 19-inch rack rail geometry. Fits DRK series enclosures without modification and aligns to the EIA-310 standard mounting hole pattern used by virtually all commercial rack-mount equipment.
• 20-Inch Depth Footprint: The rail's 20-inch depth (50.8 cm) is sized for mid-depth rack enclosures — appropriate for AV, access control, and network distribution builds where full server-depth enclosures are unnecessary and waste floor space.
• DRK Base Series Compatibility: Designed and rated specifically for the DRK series — Middle Atlantic's slide-out rack platform. Using this rail outside that series may not preserve the seismic certification, so verify your base rack before spec'ing.

Integration and Compatibility

The DRK19-RR44PRO is a replacement or supplemental rail for the Middle Atlantic DRK series rack system. It pairs with standard 19-inch rack accessories including cage nut hardware, blanking panels, and rack shelves that follow EIA-310 mounting geometry. The cage nut format ensures compatibility with all standard M6 rack-mount hardware across network switches, patch panels, NVR/DVR units, UPS systems, and AV processors.

For deployments requiring seismic documentation, the ASCE 7-10 and OSHPD 96-967 numbers are pre-assigned to this rail — your structural engineer or AHJ (Authority Having Jurisdiction) can reference them directly. This matters on healthcare, education, and government projects where rack infrastructure must pass seismic plan review before installation approval.

If you're building out a full NVR-based video surveillance rack or a consolidated security head-end, pairing this rail with properly sized rack power distribution keeps your build organized and code-compliant from the start.

What's in the Box

• 1x Middle Atlantic DRK19-RR44PRO 44U Cage Nut Rack Rail

Frequently Asked Questions

Q: Is the DRK19-RR44PRO seismic rated, and which standards does it meet?

A: Yes. The DRK19-RR44PRO carries ASCE 7-10 and OSHPD 96-967 seismic certifications. OSHPD 96-967 is the California Office of Statewide Health Planning and Development number required for hospital and healthcare facility installations. ASCE 7-10 is the structural loading standard referenced in most US commercial building codes for seismic regions.

Q: What rack unit capacity does the DRK19-RR44PRO provide?

A: 44 rack units (44U) with 77 inches of usable height — the full vertical span of a standard tall rack column.

Q: What rail type does the DRK19-RR44PRO use — cage nut or square hole?

A: Cage nut. The DRK19-RR44PRO uses standard 6mm cage nut geometry, compatible with M6 cage nuts and matching rack screws that are widely available and used across virtually all 19-inch rack-mount equipment.

Q: What rack series is the DRK19-RR44PRO designed for?

A: It is designed for the Middle Atlantic DRK base series (slide-out rack platform). Using it outside the DRK series may not preserve the seismic certification — confirm your base rack before ordering.

Q: What finish does the DRK19-RR44PRO use, and does it resist chipping?

A: Black e-coat (electrophoretic coating). E-coat bonds to the steel at the molecular level, which gives it better chip and flake resistance than standard paint — relevant when working overhead in a populated rack bay.

Q: How much does the DRK19-RR44PRO weigh, and what are its dimensions?

A: Shipping weight is 32 lbs (14.5 kg). Dimensions: 5.41 inches wide (13.7 cm), 77 inches tall (195.6 cm), 20 inches deep (50.8 cm).

Karl Wilson

The DRK19-RR44PRO is one of those components that integrators underspecify until a project hits a seismic plan review and they have to re-rack everything. The OSHPD 96-967 certification on this rail is a real, traceable number — not a general seismic-resistant marketing claim — and it closes the loop for California healthcare, education, and high-rise commercial builds where the AHJ will ask for documentation before sign-off.

Technical Highlights:

• ASCE 7-10 / OSHPD 96-967 Seismic Certification: Dual certification means this rail satisfies both the national structural loading standard (ASCE 7-10) and California's healthcare-specific seismic standard (OSHPD 96-967) — the combination most commonly required on hospital and government projects in seismic zones.
• 44U / 77-Inch Usable Height: Full-column coverage at 77 inches means no mixing of rail types within a single rack build, which matters for load-path integrity in a seismic-rated enclosure. Partial-height rails can compromise the certification if the base rack's seismic rating assumes full-column rail engagement.
• Black E-Coat Finish: E-coat is more durable than powder coat in installation environments — it won't flake under torque from cage nut installation or chip when rails are slid in and out during rack population. On a 44U build with 100+ cage nuts going in, that matters.

Deployment Considerations:

• This rail is rated for the DRK base series specifically. Middle Atlantic's seismic certifications are system-level — the rail, the enclosure, and the mounting method are tested together. Substituting this rail into a non-DRK enclosure or a non-Middle Atlantic rack does not carry the ASCE/OSHPD certification forward, even if the physical dimensions fit.
• Package count is 1 rail. Verify your order quantity before submitting — a 4-post rack requires two rails per column, and ordering one when you need two adds lead time to a seismic-documentation-dependent project.

For California hospital rack rooms, data closets in high-rise commercial builds, or any project where the structural engineer is reviewing rack specifications, the DRK19-RR44PRO eliminates the certification gap that generic aftermarket rails leave open.