I want to make this pattern,but I want to start with a 9 1/2 block instead of 8.5. How wide would I then cut the strips??? Would I just divide by 4??

http://quiltville.com/delmts.shtml

If you cut them 9 1/2" and square to 9", then divide 9 by 4 you should have 2 1/4" strips.

Your strips would have to be cut at 2 3/4 inches wide to get a 9 1/2 inch unfinished block made up of four strips, like the quilt pictured.

Yes, the theory is the same, no matter what size block you start out with :wink:
I really like this pattern, so simple but looks way more complex :D:D:D

It makes the block 9.5" each of the four strips need to be 2 7/8 cut. HTH

I am not sure this is correct... I think 4 X 2 3/4" = 11" :wink:

This is getting really confusing. I assumed that you meant 9 1/2" squares...maybe that is not what you meant.

Okay... If you start out with a 9" square and divide it by 4, each strip would be 2 1/4" wide.

If you start with 9 1/2" and divide it by 4, each strip would be 2 3/8" wide :D:D:D

BUT***

These blocks are cut diagonally, and stitched.... so now the dimension of the block has changed :wink:

Edited*** So you square it up to 9" and then divide it by 4 :D:D:D

Yes, but there will be three seams joining the four strips, each of which takes 1/2", so she WILL have a 9 1/2 inch block after sewing the three seams!
The important question is whether the 9 1/2 inch is the size square to start, or if the goal is a 9 1/2" pieced block to put into the quilt, or a 9 1/2" finished size of the block after it is sewn to the blocks around it in the quilt!
(math teacher, retired)

You're not subtracting the seam allowances. Every time you sew two strips together, 1/2 inch gets subtracted from the total of the 11". Sewing four strips together will subtract 1/2" three times or 1 1/2 inches. 11 minus 1 1/2 equals 9 1/2. Then when the blocks are joined to each other, an additional seam allowance is taken off both sides, equally a 9 inch finished block.