Backing for a quilt question
I have never had to piece the backing of a large quilt before and had this problem , i had to buy 2 long large pieces of material to get my width and length for a large quilt, both pieces were cut off the same bolt i washed the material cut to the size i needed to equal the length and width , my question is , do i need to square up both pieces before i sew them together down the middle to get my width? i will lose a large amount of width because the grain is off so bad, or do i just sew them both together with out squaring them up and hope i it will not have the "wonky" in the backing ? i hope someone can understand my question and has the answer for me . Thank you