My husband made one for me that fits over my ironing board but is a rectangle. He put small pieces of wood on the underside to hold it in place on the existing ironing board and then I put the batting and fabric etc., over it and then we stapled the material to the bottom of the board. I use it next to my sewing machine and when I need to use the normal ironing board for clothing I just lift off the rectangle and there is my board. I love it.