Middle Atlantic 37SP/32D WRK Rack LRD - WRK-37SA-32LRD

Middle Atlantic WRK-37SA-32LRD 37U Seismic Floor-Standing Open Frame Rack

Overview

The Middle Atlantic WRK-37SA-32LRD is a 37-rack-unit, 32-inch-deep floor-standing rack engineered for demanding AV, security, and IT infrastructure deployments where seismic performance and raw load capacity are non-negotiable requirements. Standing 70.88 inches tall with a 24.25-inch external width, this rack is sized for enterprise machine rooms, security operations centers, and broadcast head-ends where you're stacking dense surveillance recorders, UPS units, patch panels, and switching gear in a single footprint. It ships from the USA and carries TAA compliance — relevant if your project falls under federal procurement requirements. Explore the full Middle Atlantic rack and enclosure line for complementary infrastructure components.

Key Features

• 37 Rack Units of Usable Space: With 64.75 inches of usable height (37 RU at standard 1.75-inch spacing), you can fill this rack with a full-scale security system — NVR, patch panels, PoE switches, KVM, and UPS — without consolidating into multiple enclosures. That reduces cable runs between racks and simplifies service access.
• 10,000 lb Static Weight Capacity: The WRK-37SA-32LRD is rated for 10,000 lbs static load. In practice, even a fully populated rack with high-density storage servers and UPS hardware rarely exceeds 1,500–2,000 lbs — this rating gives you headroom that eliminates rack-capacity as a design constraint entirely. Plan for future expansion without recalculating structural limits.
• UL-Listed Seismic Rating (ASCE 7-10): UL listing for seismic load capacity under ASCE 7-10 means this rack has been independently tested to survive seismic events at the force levels that standard triggers in earthquake-zone jurisdictions. If your AHJ or client requires seismic compliance documentation, this rack has it — many lower-cost competitors claim seismic design without third-party listing.
• 2,500 lb UL-Rated Dynamic Load Capacity: Beyond static capacity, the 2,500 lb UL dynamic rating covers loads during movement and transport — relevant if the rack will be rolled into position fully loaded or if the deployment involves shipping pre-configured rack systems to remote sites.
• 32.63-Inch Total Depth / 30.75-Inch Usable Depth: At 30.75 inches of usable depth, this rack accommodates deep 1U and 2U network video recorders and storage appliances without rear-door conflicts. Most enterprise NVRs and 4-post servers run 26–30 inches deep — you have clearance without forcing front-offset mounting or custom brackets.
• 10-32 Rack Rail Threading: 10-32 is the standard thread for AV and security equipment in North America — compatible with the vast majority of rackmount hardware, cage nuts, and floating-nut strips. No metric-to-imperial adapter strips needed for mixed-vendor deployments.
• No Rear Door: The open rear design improves natural convection airflow and simplifies rear cable management and patching. In surveillance and AV deployments where rear access for NVR drive swaps and cable changes is frequent, the open architecture is a practical advantage over enclosed designs — just account for physical security of the rear if the rack is accessible to general staff.
• TAA Compliant / USA Origin: Manufactured in the USA and TAA compliant, making it eligible for GSA Schedule contracts and federal agency deployments where Trade Agreements Act sourcing is mandated. Verify your specific contract vehicle requirements, but the sourcing documentation is in place.
• 19-Inch Panel Width Standard: The 19-inch EIA-standard panel width ensures compatibility with every standard rackmount product — no modifications, no custom rails, no vendor-specific mounting systems. Pair with rack accessories such as cable managers, blanking panels, and power distribution units from any compatible supplier.

Integration & Compatibility

The WRK-37SA-32LRD integrates into any standard 19-inch rackmount environment. The 10-32 thread pattern is compatible with both cage-nut and tapped-rail mounting accessories. At 30.75 inches of usable depth, it accommodates four-post mounting of standard enterprise and commercial-grade equipment including PoE network switches, patch panels, rackmount UPS, and high-density storage servers. For security operations deployments, it pairs well with enterprise NVR platforms and high-channel-count surveillance appliances that require deep chassis clearance. The ASCE 7-10 seismic listing makes it compatible with jurisdictions that enforce seismic bracing requirements for IT and communications equipment — consult your local building code and structural engineer for anchoring requirements specific to your site. Review our rack selection guide for guidance on matching rack depth and load ratings to your system design.

Frequently Asked Questions

Q: Is the WRK-37SA-32LRD TAA compliant?

A: Yes. The WRK-37SA-32LRD is TAA compliant and manufactured in the USA, making it eligible for federal procurement vehicles that require Trade Agreements Act compliance.

Q: What is the seismic rating on the WRK-37SA-32LRD?

A: The WRK-37SA-32LRD carries a UL listing for seismic load capacity under ASCE 7-10. This is a third-party-listed seismic rating, not a self-declared design claim — relevant for deployments in seismic zones where the AHJ requires documentation.

Q: What is the weight capacity of this rack?

A: The static weight capacity is 10,000 lbs. The UL-rated dynamic load capacity is 2,500 lbs. In real-world deployments, fully populated racks rarely approach either limit, but the ratings matter for structural engineering sign-off and seismic compliance documentation.

Q: Does the WRK-37SA-32LRD include a rear door?

A: No. This model has an open rear configuration, which improves airflow and rear cable access. If you require a rear door for physical security or dust management, consider a different enclosure in the Middle Atlantic line.

Q: What rack rail thread does this rack use?

A: The WRK-37SA-32LRD uses 10-32 threaded rack rails, the North American standard for AV and IT rackmount equipment. This is compatible with standard cage nuts, floating nut strips, and the vast majority of commercial rackmount hardware.

Q: How much usable depth does this rack provide?

A: The usable depth is 30.75 inches (78.1 cm), sufficient for deep enterprise NVRs, servers, and storage appliances that run up to 29–30 inches in chassis depth.