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Disappearing Nine Patch Quilt Block Pattern

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How to Change the Size of Disappearing Nine Patch Quilt Blocks
Disappearing Nine Patch Quilt Block Pattern

Three rows of the parent disappearing nine patch quilt block.

© Janet Wickell

Choosing a Size for the Disappearing Nine Patch Block

Work with any size squares you like, just remember that the block will be sliced in half twice -- once vertically and once horizontally. Here's a look at the results of using a few different square sizes for parent blocks:
  • 3-1/2" parent squares: daughters finish at 4-1/4" x 4-1/4"
  • 4-1/2" parent squares: daughters finish at 5-3/4" x 5-3/4"
  • 5-1/2" parent squares: daughters finish at 7-1/4" x 7-1/4"

Again, any size squares will work -- if the quilt will be constructed entirely of same-sized daughter blocks, they'll all match in size as long as you sew and cut accurately.

Squares do not have to include a fraction. Do you have a collection of 5" x 5" fabric squares, either purchased or received in swaps? Perfect -- daughters will finish at 6-1/2" x 6-1/2".

Here's a formula that will help you understand the finished size of daughter blocks:

  • Divide a parent's finished size 2, and then subtract 1/4" to find the finished size of each daughter.
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