1 Hello, I purchased one of your doors for my aircraft hanger a couple of years ago. It has been perfect, however the cement contractor who poured the floor was not and there is a low spot in the floor resulting in a 3/4 inch opening below the rubber skirt for about 20 feet of the length. How can I lower the skirt? I tried removing the sheet metal screws on the outside of the door but it’s not that simple. Thanks in advance.
