This is all the duct work for my workshop. When I started researching dust collection, I learned that 6" is the minimum dust size that should be used in order to maintain proper air flow. There were a lot of recommendations to use PVC as it is supposedly less expensive than steel. When I looked into it, a 10' length of PVC was $90, whereas a 10' length of 26 gauge steel spiral duct was $23. At that point, it was a no brainer. PVC would have cost over $1500, plus the headache of grounding it. The steel was $350. For dust collection, 26 gauge is the minimum thickness that should be used, otherwise it could collapse.
Now, where are my leather gloves... #workshopbuild #ductwork #dustcollection #dustcollector