Originally Posted by
lclang
On wonky panels stretch them while they are wet and pin them in place. That usually works.
I just did this with a flannel panel that was approx. 23" x 42" and it came out great. I squared it by pinning it to my ironing board (24" x 48"), sprayed it with water until wet, patted it into shape, let dry and repeated with a spray of Easy Press. When dry it was perfectly square. I then set my 12 1/2" ruler in the corner and extended the sides by placing my rulers end to end to the length of the panel. Now I can frame the panel with the blocks I made and the whole quilt will be square. Hope this helps.