For your 54"x72" featherbed, I'd go with 6½ yards if you use a horizontal seam and 8½ yards if you want a vertical seam. That's covering both sides and making sure there's enough extra for small mistakes, the featherbed's thickness, matching up the ticking stripes, and squaring up the clerk's cuts. You might want to use ½" seams, too.
Last edited by ghostrider; 01-17-2012 at 06:53 PM.