The door is a wooden 4x4 panel single-door rollup.
Here are some pictures of the door from various angles that hopefully you can use to help me identify the door. http://126.96.36.199:8080/garage/index.html
Note there are no manufacturer markings except for the letters JGS on one of the hinges, but I believe this is just the name of the hinge manufacturer.
Can you help me?