" The header is carrying the weight" OK that was another concern like how strong the framing is like if i need special strapping and locking into the slab on ground. So opening and closing the door dont put torque on sides?
Not sure column is correct word. Have not been able to find any videos showing adding framing to account for narrower door / making opening skinnier. "If you are closing off the unused space " well i will probably put a slider in the left over space but was going to do that later