Middle Atlantic 1 Bay Seismic Riser Base for 42 Inch Deep WMRK Racks

The Middle Atlantic 1 Bay Seismic Riser Base is engineered to deliver secure, organized, and scalable support for 42" deep WMRK rack configurations. Designed to act as a robust lower cable chase, this base simplifies cable routing between racks while providing seismic stability and a clean, professional appearance in mission-critical AV, IT, and broadcast environments. Built from heavy-gauge welded steel and finished in black powder coat, it combines durability with a sleek, professional look that stands up to the rigors of busy equipment rooms. With a high weight capacity and precise dimensions, it is the ideal foundation for reliable rack deployment where cable management and footprint integrity matter most.

• 1 Bay Seismic Riser Base for 42" Deep WMRK Racks — specifically designed to support a single bay of 42" deep WMRK racks while providing a dedicated pathway for cables to pass between racks.
• Weight capacity — rated to handle up to 1000 lb, ensuring support for dense equipment stacks and heavy cabling without compromise.
• Dimensions — 23.9" wide, 42" deep, and 24" high, offering a stable footprint that aligns with standard 1-bay WMRK rack installations while leaving room for cable management and airflow.
• Material and finish — constructed from heavy-gauge welded steel with a durable black powder coat finish that resists corrosion, wear, and scuffing in demanding environments.
• Cable management and seismic capability — serves as a lower cable chase to pass and organize cables between racks, reducing clutter, improving airflow, and contributing to seismic stability by maintaining orderly cabling paths.

Technical Details of Middle Atlantic 1 Bay Seismic Riser Base for 42 Inch Deep WMRK Racks

• Weight capacity: 1000 lb
• Footprint width: 23.9 inches
• Depth: 42 inches
• Height: 24 inches
• Material: steel
• Finish: black powder coat
• Seismic base type: riser base for 1-bay configurations
• Primary function: provides a lower cable chase to pass cables between racks in 42" deep WMRK rack systems
• Application: ideal for AV, IT, and broadcast installations requiring robust cable management and seismic stability

How to Install Middle Atlantic 1 Bay Seismic Riser Base for 42 Inch Deep WMRK Racks

• Prepare the installation area — select a solid, level floor surface and verify it meets local seismic and building-code requirements. Clear the area of debris and ensure there is unobstructed access to the mounting points and cable routes.
• Position the base — place the 1 Bay Seismic Riser Base under the footprint of the 42" deep WMRK rack, aligning with the rack’s base and any inherent mounting provisions. Confirm there is ample space for the lower cable chase and cable routing between racks.
• Anchor the base — secure the base to the floor using appropriate anchors and fasteners as recommended by Middle Atlantic and in accordance with local codes. Ensure fasteners are rated for the floor material (concrete, wood, or other flooring) and achieve a stable, non-shifting foundation.
• Install the rack assembly — carefully slide the 42" deep WMRK rack onto the riser base, ensuring even weight distribution and proper alignment with the base footprint. Verify that the rack sits squarely and remains stable without binding.
• Route and organize cables — route cables through the lower cable chase for clean separation between racks. Use cable ties or Velcro to secure cabling and maintain clear access for maintenance, airflow, and future upgrades.
• Final validation — check the installation for wobble or misalignment, confirm cable paths remain unobstructed, and validate that the assembly complies with on-site seismic guidelines and facility standards. Perform a routine load check if applicable to confirm the 1000 lb rating is comfortable under the deployed configuration.

Frequently asked questions

• Q: What is the primary function of the Middle Atlantic 1 Bay Seismic Riser Base?
  A: It provides a stable foundation for 1-bay 42" deep WMRK racks while serving as a lower cable chase to pass and organize cables between racks, enhancing seismic stability and cable management.
• Q: What load can the base support?
  A: The base is rated for up to 1000 lb, enabling it to handle heavy equipment loads and dense cabling typical in AV/IT deployments.
• Q: What are the dimensions of the base?
  A: The base measures 23.9" in width, 42" in depth, and 24" in height, providing a precise footprint for 42" deep WMRK rack configurations.
• Q: What material and finish are used?
  A: It is made from heavy-gauge welded steel with a black powder coat finish, designed for durability and long service life in challenging environments.
• Q: Is it compatible with all 42" deep racks?
  A: This riser base is designed specifically for 1 Bay configurations intended for 42" deep WMRK racks. Verify compatibility with your exact rack model before purchase.