Originally Posted by Jeanniejo
I have a quilt calculater app. on my ipod you just put in the measurement and it tells you how much fabric you need. I put in 80 X 90 and it says I need 8 1/2 yards for a crosswise backing (4" overhang, unpieced) Hope this helps. If you have an ipod the app is free.
Jeannie, which app are your using? I have one called Quilt Fab and it calculates to 6-3/4 yards using those measurements. Everyone's figures are closer to 8 yds. I'll have to check my settings and see why it's calculating so low.