Sorry about the Doyle posting, I must have hit something. Lisa maybe the envelopes would be good the first row but later as the rows come in go to the boxes. However, I will probably have sashing to go along so until I get my row done I won't know for sure. I think as long as the fabrics is protected any way would work for me but you folks with experience at this sort of stuff would know better! OK off to my studio, have fun quilting!