Windlace is the cording that is used around the perimeter of the doors of automobiles. The material is sewn around 3/8" sponge cord with cardboard and has a flange of approximately 1/2". 

How much Windlace do you need? 

5 Yards for Most 2 Door Hardtops
7 Yards for Most 2 Door Sedans
14 Yards for Most 4 Door Vehicles