If your pattern calls for 2 1/2" strips and you buy a jelly roll and wash them first, you more than likely are going to have shrinkage. Now if the whole quilt is all "jelly roll pieces, then that is fine, but if other parts of the quilt have larger pieces and you have pre-washed those pieces then cut your sections, they are going to be cut the exact right size, which is not going to mesh with your shrunken 2 1/2" pieces.
Last edited by Yooper32; 03-12-2017 at 04:44 AM.