Spunstrand Inc.

For over 50 years, Spunstrand Inc. has furnished miles of under slab HVAC duct systems, above-ground industrial and municipal duct systems, and various special applications. Installations are in every state and foreign country. All these years and mi...

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About Spunstrand Inc.


About Us

For over 50 years, Spunstrand Inc. has furnished miles of under slab HVAC duct systems, above-ground industrial and municipal duct systems, and various special applications. Installations are in every state and foreign country. All these years and miles of pipe have produced a multitude of reliable services available to engineers, contractors, and architects.

These services include:

  • Duct sizing and layout assistance
  • Trenching and backfill considerations
  • Full structural calculations for burial, pressure, vacuum, etc.
  • A unique system for under slab in boot buried dampers
  • Design for flex connections and expansion boots
  • Field joint procedures and demonstrations
  • On-site factory training
  • Carbon vessel design, selection, and sizing
  • Absorbtion media selections
  • Shop drawing reviews for factory manifolded considerations
  • Quality control procedures
  • Visual inspection criteria
  • CSI format specs as word or pdf files
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