First pic is of the door hanger, second one is of the track. I put two tracks together and welded them to a piece of angle, spaced apart for the hanger. It was very heavy fortunately my forks could reach. It rolls easy, the door is only 9x9 foot.
Nice! How have you set it up so the door bottom doesn't swing freely with the wind blowing, and how did you design the lock?
I have two 10" x 12" doors on the end of my barn and they both slide outward. At the center there is a concrete pier with two 1" steel pipe sticking up about 1/2", and each door has a 5/8" rod that slides up to release that end of the door. On the outside column each door has a fabricated hook about 8" long to pull them into place. They stay tight no matter what the wind does.