I have built a quilt top that measures 68 x 80 and miscalculated the backing material. (went border happy :)) The top is with unwashed fabric as it is done with a jelly roll - so I didn't wash any of the fabric. I have played with the left overs and just don't have enough to do the back. I do however have enough of a different fabric to do the back but it is washed. Any idea how to use the washed fabric with the unwashed top? Will the shrinkage of the top warp the back? Should I try to wash the top and if so how would I keep the edges from unravelling? This is my second top so learning a lot - but certainly have LOTS more to learn.
Thank you for your help!! :)