That's a big door biff. My garage is 22x24 with 7x16 single door. I didn't want the centre post. Something else for the wife to hit lol. Just kidding she's a pretty good driver.
one of our previous homes had a two stall garage, with a single door, and a post in the center of the door
worked out fine while we lived there
then we sold the place to her brother, and i believe it was only a few months before someone knocked that post down