Originally Posted by
givio
I'm not very good at math, but would we need about 1/2 yard of white to sew 100 9patches? Or maybe 5/8 yard? But I have plenty of white already. It's sort of a standard fabric for me to have in my stash. I've used it for backings. You see a lot of the 'modern' type fabric prints paired with white, so it seems to be quite popular now.
No, maybe it's 2 yards. lol I don't know! Still. 2 yards, I can get that much if I don't already have that much.
Ok, 1 3/4 yards? My calculator is groaning...
I came up with 1-3/4 yards, but I'm not caffeinated yet, so ...
You can cut 16 2-1/2" squares per WOF strip (based on the WOF being 42")
You need 400 white squares to make 100 blocks
400 divided by 16 = 25 strips needed
25 2-1/2" strips = 62.5 inches of fabric
62.5 divided by 36 inches per yard = 1.74 yards
I'd get 2 yards just to be on the safe side.
Somebody double check that. I'm not awake yet!