Originally Posted by Digitizingqueen

if you are sending to a long armer you need more 4 to 6 that is because when we mount them on the leaders and such we need some play I have had a couple come to me with backing that was too short - it will get sent back but we need more play room than someone quilting on domestic - lots of people trim the excess backing and use it to bind the quilts which really means you are not wasting the fabric -