This doorset is a bifold door with a combination full frame and clearview look. The door frames are 2 inch with 1.5 inch centers. The hinges are arranged so that the doors will fold back all the way against the fireplace sides. The gas log will be burned with the doors open so there are no air valves. The door frames and the main frame are polished brass. Scroll picture to the right to see what it looks like with the doors open.