My garage door is sized 6'6" x 9'. The ceiling is somewhat low, about 7' tall. The door has what I'm told are "sleds" to assist with the top of the door turning quicker so it doesn't hit the ceiling.
The door closes flush to the bottom of the floor. The top, however, is not flush against the frame. There is about a 1-1/2" gap. I removed the sleds and the garage door opener arm so that I could see if those were inhibiting its closing all the way. With these removed, it will close another 1/2" or so but there is still a gap.
The frame as far as I can tell is square. There is nothing obstructing the edges of the door that would prevent it from closing flush. The hinge for the top panel appears to have at least another few degrees before it's flat, or a 180-degree angle.
Are all doors designed this way? Is this due to my frame being somewhat short? Seems pointless to have an insulated door when cold is just going to seep in through the top.