I am by no means an expert, or even amateur HVAC person but I think I have a basic understanding of how air flows.
My question can best be described in the pictures below. The 1st picture is how the ducts are currently routed in the ceiling of our house. The 2nd picture is my idea on how to correct the airflow / push more air to the upstairs office which becomes incredibly hot during the day. The only way to keep the temp. at a comfortable level (72-74 degrees) in this room is to keep the AC set on 70-71 degrees... thus making the downstairs too cold. The thermostat is downstairs in the living room. The vents downstairs blow incredibly hard when the system is on, while the vent in the office barely puffs out air. I would like to try and correct this problem myself as I simply cannot afford to have an HVAC crew come out and charge me $500 to redo the ducting. If the AC is set on a normal temp. downstairs (73-74) the office easily reaches temps of 80-82 degrees.
Any help or insight yall could provide would be GREATLY appreciated!
Current layout of ducting in ceiling.
Idea for re-routing ducts to force more air to the office upstairs.