Middle Atlantic 18SP/28D Rack Less R DR - ERK-1828LRD

Middle Atlantic ERK-1828LRD 18U Open-Frame AV/Security Equipment Rack

Overview

The Middle Atlantic ERK-1828LRD is an 18-rack-unit open-frame equipment rack engineered for AV distribution, security head-end, and IT closet deployments where airflow, accessibility, and structural integrity matter more than enclosed aesthetics. At 28 inches deep with a usable depth of 26.47 inches, this frame accommodates deep NVRs, UPS units, and patch panels side by side without clearance compromises. The ERK-1828LRD ships as a frame-only configuration — meaning no rear door, no side panels — which suits integrators who need full front-and-rear access during commissioning and ongoing maintenance.

Manufactured in the USA from steel with a black wrinkle powder coat finish, the ERK-1828LRD carries TAA compliance, making it a straightforward procurement choice for federal, state, and municipal security deployments subject to trade-agreement requirements. Its seismic load capacity rating (UL Listed) adds a layer of assurance for installations in earthquake-risk zones or facilities with strict structural compliance requirements.

Key Features

• 18 RU / 31.63 in usable height: Fits a full complement of 1U and 2U devices — a typical head-end build might include a 16-channel NVR, PoE switch, patch panel, and UPS in a single frame without running out of vertical space. Usable height of 31.63 in means all 18 rack units are accessible.
• 2500 lb UL-rated load capacity: This is a structural spec with real operational meaning. High-density security builds with multiple NVRs, large UPS systems, and dense cabling can approach several hundred pounds; at 2,500 lbs UL-certified capacity, the ERK-1828LRD is nowhere near its structural limit in any realistic security or AV installation.
• 28 in total depth / 26.47 in usable depth: Accommodates deep rackmount equipment — full-depth servers, large UPS units, and deep NVR chassis — that shorter 2-post or open-frame racks cannot safely support. The 1.53 in difference between total and usable depth accounts for rail hardware, giving you accurate clearance planning numbers.
• 22 in overall width / 19 in panel width: Standard EIA 19-inch rail spacing means every standard rackmount device installs without adapter hardware. The 22 in total width number matters for room layout and side-by-side rack placement planning.
• 10-32 threaded rack rails: Industry-standard 10-32 tapped rails accept standard cage nuts and screws used across virtually all rackmount security and AV equipment. No specialty hardware required — your existing install kit works.
• Seismic load rating (UL Listed): For deployments in California, the Pacific Northwest, or any jurisdiction requiring seismic-rated infrastructure, this rating satisfies code requirements without needing third-party seismic certification on the rack itself. Saves time during plan-check submittals.
• TAA Compliant / USA-made: Federal procurement rules under the Trade Agreements Act require domestic or TAA-designated country of origin. The ERK-1828LRD is manufactured in the USA — origin documentation is straightforward for government contracting officers.
• Frame-only / no rear door: Open-frame design reduces cost and maximizes cable access. If you're deploying in a dedicated IDF, server room, or locked security closet, the absence of a rear door is a feature — not a limitation — because it eliminates cable-routing obstacles and improves passive airflow around heat-generating NVRs and switches.
• Black wrinkle powder coat finish: More durable than standard matte black paint finishes — resists scratching during cable pulls and equipment swaps, which matters in rack infrastructure that gets worked on repeatedly over a multi-year deployment lifecycle.

Integration and Compatibility

The ERK-1828LRD's standard 19-inch EIA rail spacing and 10-32 threaded rails make it compatible with essentially all rackmount security cameras recording and networking hardware — NVRs, PoE switches, patch panels, KVM drawers, and UPS units from any manufacturer. Integrators building network video recorders and switching infrastructure into a unified head-end will find the 26.47 in usable depth sufficient for full-depth 2U NVRs and 1U managed PoE switches without front-to-back clearance issues.

For structured cabling in the same enclosure, Middle Atlantic's broader rack and enclosure accessory line provides compatible cable management panels, horizontal managers, and power strips that mount directly into this frame. TAA compliance aligns this rack with government and education procurement channels where origin restrictions apply, and the seismic rating satisfies California OSHPD and similar code jurisdictions without additional hardware engineering.

Facilities managers evaluating rack accessories such as blanking panels, cable lacing bars, and shelf units should verify 10-32 compatibility with their chosen accessories — the ERK-1828LRD uses threaded 10-32 rails, not square-hole rails, so cage-nut-style accessories are not required but threaded hardware is. Consult a power and UPS sizing guide when planning total rack load, particularly if the installation includes dual-conversion UPS units, which can add 50–100 lbs or more to the frame.

Frequently Asked Questions

Q: Is the ERK-1828LRD TAA compliant?

A: Yes. The ERK-1828LRD is TAA compliant and manufactured in the USA, satisfying Trade Agreements Act requirements for federal, state, and municipal procurement.

Q: What is the load capacity of the ERK-1828LRD?

A: The ERK-1828LRD carries a UL-listed load capacity of 2,500 lbs (1,134 kg), which exceeds the requirements of any realistic AV or security head-end build.

Q: Does the ERK-1828LRD include a rear door or side panels?

A: No. The ERK-1828LRD is a frame-only configuration with no rear door and no side panels. It ships as an open-frame rack, which maximizes airflow and cable accessibility.

Q: Is the ERK-1828LRD seismic rated?

A: Yes. The ERK-1828LRD is UL listed for seismic load capacity, making it suitable for deployments in seismic-risk zones and jurisdictions with structural compliance requirements such as California OSHPD.

Q: What rack rail type does the ERK-1828LRD use?

A: The ERK-1828LRD uses standard 10-32 threaded rack rails. This is the industry-standard thread size compatible with the vast majority of rackmount AV and security equipment hardware.

Q: What is the usable depth of the ERK-1828LRD?

A: The usable depth is 26.47 inches (67.2 cm), accommodating full-depth rackmount equipment. The total external depth is 28 inches.