On an recent job where we set posts for an addition, the owner wanted 3 post set for a future deck that will come off the addition. We were able to take off the existing decking and install our post between the deck joists.
After we reached a certain depth, our hydraulic motor was impeded by the deck joists.
Not a problem though. We were able to use an extension to install the post down to the right depth and pressure. This allowed us to get the post low enough to accommodate an new structural beam.
Have an existing deck that needs new footings? Not a problem for Techno Metal Post Alaska!!!