How to Make the Windmill Quilt Block

Join me this year as I provide instructions for how to make a different quilt block each month. Eventually, all these blocks will turn into a great quilt! For the month of December, we are making the Windmill Quilt Block in this quick tutorial.  

Windmill quilt Block tutorial

This block is super easy to put together. I love how fancy it looks!

For a 12 inch finished block (12.5 inch unfinished), you will need to cut the following: 

 Light Color 

- 2 of 7 x 7 inch square 

Dark Color 

- 1 of 7 1/2 x 7 1/2 inch square


- 1 of 7 1/2 x 7 1/2 inch square

Fabric squares cut out and ready for the process to start


 Cut the light colored squares in half on the diagonal to create four total triangles.  

Light colored squares cut once on the diagonal to create triangles.

Cut the white and dark colored squares diagonally into 4 triangles each. 

Squares cut in to quarters on the diagonal

Assemble Split Quarter Square Triangles. Using the picture as reference, stitch the triangles together. Start with the small triangles, then add on the big triangle. Be careful not to stretch the triangles on the bias. Press. Repeat to create 4 units. 

Split quarter square triangles

Layout the four split quarter square triangles to match the picture, stitch them together and press.  

 Windmill quilt block in blues and white

If you have any questions, please leave a comment below.

Check back each month for a new How-To of quilt blocks! To see the other blocks, just search my blog for Quilt Guild Block of the Month.

If you would like a PDF digital download of these instructions, check out Group #6 of the How-To Quilt Block of the Month.  Also, please check out the other blocks that are available for download here.

(This is classic block that has been designed by many people but these instructions are written by me.)  

Have fun quilting!

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