Round Duct
Spiral Ductwork
Precision-formed spiral duct is the workhorse of commercial HVAC. We fabricate to your exact diameter and gauge specifications — from small-diameter branch runs to large-diameter trunk lines. Tight tolerances, clean seams, ready for your installation schedule.
- All diameters from 4" to 60"
- Galvanized, stainless, or aluminum
- Fabricated from hand sketches, shop drawings, or contract sets