Sounds like quite a job - not something I would want to tackle! Good luck

I am no help. I want to welcome you to this wonderful board. So many knowledgeable people here. I'm sure you get help.

Welcome to the board and good luck with your problem

A quilt teacher referred to sashes and borders as coping, meaning to cope with irregularities. Sometimes we have to accept that work is not perfect and do the best we can with it. Depending on how much off the quilt top is, you may want to adjust with the sashes or borders and let it be wonky a bit, leaving an explanation on the label. We had blocks donated that were stars and they visibly had a pooch of at least an inch which we corrected by reversing and sewing a dart to make it lie flat. we lost some points in the center but looked better than before. If it were to be hand quilted I could have worked it in, however we were tying it. Another option would be to create a design that would complement the top such as an applique on the border that would appear to be pushing the block over such as a cat or flower.

Don't forget the batting will take up some of the extra fabric. I would buy a big, fluffy poly batting which, if the quilt is from the 70's, is probably what was originally used.

Not sure if this will work for you. My DH had a quilt he had gotten from hi sister. OH DEAR, needless to say, she was not a quilter. I carefully undid the ties, laid it flat (it was not even close to flat) Measured and purchased a lovely flannel that kinda went with it OK. Re-tied it with the flannel back, rolled the back to the front and used the flannel as my binding. It actually didn't turn out too bad. He keeps it in his truck in case he would ever need something to lie under or on. I did not try for beauty or perfection. That would have required taking each square apart and starting from scratch. Where are you, I'm at I-17 and the 101, NE PHX.

Welcome and warm greetings from Glendale, AZ! I hope you're able to repair the quilt. It sounds like it's going to be quite the project!

I am a new quilter - and can't even imagine taking on such a project - that said, I have a trunk full of doilies my husbands grandmother crocheted. They are all lovely but what to do with them? How about making a new quilt using something like a square in a square pattern and using the squares of this quilt as the center? Or having a squared up 12 inch section with a nice coordinating fabric as a square next to it? Eventually it would be closer to being straight. Just food for thought.

Welcome, please post a picture of the revised quilt. Hope you get a bit of cooler weather!!!

Last year I tackled a vintage quilt top where the sashing was too small for the quilt blocks, which were applique on muslin. It had no borders. All blocks pouched out some, but adding a border to the edges that alternated between pouchy blocks and drawn-in sashing was a big challenge. When I measured the quilt top, all outer edges were inches longer than a measurement taken the length of the quilt top at any sashing point. I trimmed what I could and then ran a large stitch stay-stitch around the quilt top, which more evenly eased the excess fabric. Lastly I attached the borders using a walking foot.

Best wishes on your project!