For the standard CRIB size quilt you will need 1 3/4 yards for the backing and 3/8 yard for the binding.
For the standard TWIN size quilt you will need 5 1/4 yards for the backing and 5/8 yard for the binding.
For the standard DOUBLE size quilt you will need 5 1/4 yards for the backing and 5/8 yard for the binding.
For the standard QUEEN size quilt you will need 7 1/2 yards for the backing and 5/8 yard for the binding.
For the standard KING size quilt you will need 8 1/4 yards for the backing and 3/4 yard for the binding.