Originally Posted by
quilt1950
It's tough to dictate the finished size. The best I could come up with is 640" of 2 1/2" fabric. This would sew up in these rounds (considering finished size of 2" for length), with a finished size of 32" x 40". I'd start with some extra length, because when I did this I found it difficult to get clean cuts when I ended a seam. I had to straighten my edges.
Round 1 4" length x 320" width
Round 2 8" length x 160" width
Round 3 16" length x 80" width
Round 4 32" length x 40" width.
If I needed 36" x 40", I think I would make the above, and then add two additional strips.
Thanks for this. I've played with the numbers, too, and it's surprising how making changes can completely make this project not work. I tried with 21" strips so I could use fat quarters, and I came up with some options, but it definitely took more thinking than I expected...