This 90-inch long mill finish aluminum awning rail is correct for vintage trailers using any standard awning, including our vintage rope & pole awning. It is screwed or riveted to the trailer through the rail's flange. The bead or rope on the edge of the awning slides through the rail. The overall width of this awning rail (including the flange) is 1-3/16".
Due to shipping restrictions, we are not able to sell rails longer than 90" long. However, you can piece more than one together to create the length you need.