Peter Hill Carroll calling the shots and arguing with Tim. Both of them are engineers. Notice that Peter is the only one drinking while everyone else is still working. Who hired this guy? Going without interior walls on the main floor required that we find other means of carrying the load of the second floor and roof. To achieve this, LVL's spanning the width of the main floor were posted down to the foundation walls. On the close-up, notice the hanger carrying one end of shorter LVL running perpendicular to the main beam.