How to Sew a Sister’s Choice Quilt Block

Posted by Elaine Huff on

Here’s another “Choice” block for you to sew – a 10″ finished one this time. The Sister’s Choice block is easy to sew but with the right color placement, it can be so stunning. I’ve seen this block put in a quilt with sashing in between the blocks and the total effect of the block is lost. Without sashing, you get a diagonal design in one color and a grid design in the other color. So let’s get started!

sisters choice quilt block

Fabric Requirements for a 10" Finished Sister's Choice Quilt Block:

  • Light/White: 4 – 3″ squares; and 4 – 2.5″ squares
  • Medium 1/Light Pink: 4 – 2.5″ squares
  • Medium 2/Pink: 4 – 2.5″ squares
  • Medium 3/Light Blue: 4 – 3″ squares
  • Medium 4/Blue: 4 – 2.5″ squares
  • Dark/Black: 1 – 2.5″ square


 sisters choice 1

Piecing Directions:

Step 1:

Half-Square Triangle Units:

The first step is to make 8 Half-Square Triangle (HST) units using the Light/White 3″ squares and the Medium 3/Light Blue 3″ squares. You can find my tutorial on HSTs at

sisters choice 2

Putting It All Together:

Step 2:

Lay out the HSTs you just made and all the other 2.5″ squares as shown in the picture below.

sisters choice 3

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Step 3:

Now you can sew them into rows and…

sisters choice 4

Step 4:

Press the seam allowances away from the Half-Square Triangle units as shown below.

sisters choice 5

Step 5:

And now you sew the rows together to make the block. See, I told you it was easy!

sisters choice 6

Step 6:

Now to press the seam allowances. I found that the block laid flatter by pressing the middle two seam allowances toward the center and the outer two seam allowances toward the outside of the block. The picture below shows how I pressed the seam allowances. Trim/square up the block to 10.5″ if needed.

sisters choice 7

I hope you’ve enjoyed learning how to sew the Sister’s Choice block. I know I say “it’s one of my favorites” a lot, but this truly is a favorite of mine!

If you like this tutorial and want to see more, just click HERE to sign up for my newsletter and receive a free PDF quilt pattern called "Chained Weathervane".

If you have any suggestions for tutorials or anything else quilting related, just leave a comment and I’ll get to work on it!

Happy Quilting!


P.S. Here's a link to some layout options for the Sister's Choice block:

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