Hammond 44U Heavy-Duty Seismic 2-Post Open Frame Floor Rack

The Hammond 44U Heavy-Duty Seismic 2-Post Open Frame Floor Rack (DRZ4 Series) is a carrier-grade, high-strength rack solution engineered for mission-critical environments where seismic compliance and structural integrity are essential. Built to meet GR-63-CORE Zone 4 seismic standards, this rack is designed to withstand extreme earthquake conditions while keeping network and telecom equipment secure and operational.

Constructed from heavy-duty welded steel with reinforced base geometry, the rack supports up to 2,000 lbs of equipment load, making it ideal for dense switching, telecom infrastructure, and high-capacity deployments. Its 44U height (84″) and open frame design provide maximum airflow, easy cable routing, and full accessibility for installation and maintenance.

The rack features EIA-standard 19″ mounting rails with 10-32 tapped holes, ensuring compatibility with a wide range of rack-mounted equipment. A wider frame (approx. 22.75″) enhances lateral stability, which is critical in seismic zones and high-load environments.

Key Features

• 44U rack capacity for full-height deployments
• GR-63-CORE Zone 4 seismic-rated for high-risk environments
• Up to 2,000 lb load capacity for heavy-duty equipment
• Heavy-duty welded steel construction with reinforced base
• Wider frame (~22.75″) for increased lateral stability
• Standard 19″ EIA mounting with 10-32 tapped rails
• Open frame design for airflow and easy access
• Integrated grounding studs and cable management mounting points
• Ability to gang racks together for scalable deployments

The Hammond 44U Heavy-Duty Seismic 2-Post Rack is a mission-critical infrastructure component designed for environments where equipment failure is not an option. With its Zone 4 seismic rating, 2,000 lb capacity, and reinforced design, it delivers the strength, compliance, and reliability required for telecom, industrial, and high-risk deployments.

If your project involves seismic compliance or critical uptime, this is the correct rack—not just an option.