I think this is the pillow ticking I used for my leaders:
http://www.beverlys.com/striped-pill...lue-cream.html
Hard to remember, but I think I got 7 yards of it to make 3 leaders for my 10' frame. There was plenty left over. The stripes make it easy to cut straight lines and square off the corners. The above ticking is different than screen-printed ticking (such as fabric.com sells). In fact, I think James Thompson and Co. may be the only ones who make real woven pillow ticking these days. Check for colors, too. I got mine in pink and really like it; pink is soothing to me, whereas I would have found the traditional blue somewhat depressing.
Edit: Here is a link to the different colors:
http://www.beverlys.com/woven-stripe...-thompson.html