Enlarge deck with untreated wood beam
For the footings, I plan to use industrial heli piles which cost ~$200+tx each installed. In my case, 4 heli piles (2 at 2' and 2 at 10' from the house foundation). The only part that is attached to the house is the new beam attached to the existing beam. Do you see any issue with this structure? Do you have any comments on heli piles for deck footings?
Really appreciate you help.