VMC Group Stock Inertia Bases consist of a structural steel channel perimeter frame and reinforced steel. Stock Inertia bases are inventoried in the following sizes: 20" x 36" x 6", 20" x 48" x 6", 24" x 48" x 6", 24" x 60" x 6", 24" x 72" x 6", 36" x 60" x 6", 36" x 72" x 6". Standard size products minimize order lead time. Templates, bolts, brackets and seismic isolators are sold separately.

Features & Benefits

  • Reinforced steel frame
  • Available in multiple standard sizes to minimize lead time
  • Seismic capacity up to 2.0g
  • International Building Code® (IBC) compliant


  • Pumps
  • Fans
  • Compressors
  • Chillers
  • Other equipment




The engineers we employ hold the highest industry-recognized credentials in structural analysis, elastomer development and system dynamics.


We are the first ISO accredited PCA ISO-17065, third-party certification body for special seismic certification of non-structural building components and their mounting configurations by the ICC’s International Accreditation Service.

Test & Measurement

We are the only ISO 17025:2005 Accredited Seismic Simulation Test Laboratory with a triaxial shake table owned and operated by California licensed Structural engineers.

Testing Services Update
DCL now offers Nuclear Qualification and Testing services.

In partnership with Greenberry Industrial, we now offer testing services that meet the requirements of ASME NQA-1.

Call for more information.