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