12.5″ Origami Star Tutorial

If you don’t remember, back in 2013 I was apart of the Diary of A Quilter’s Virtual Quilting Bee and did a great tutorial on a 8.5″ Origami Star Tutorial. I did mention in that post I would be posting the math for a 12.5″ block (well never did!) So here’s the math for a 12.5 x 12.5 block:

12.5 Origami Star Block

Fabric Requirements:

  • (4) 2.00 x 6.5 inches strips in fabric choice 1 (Strip#1)
  • (4) 2.00 x 6.5 inches strips in fabric choice 2 (Strip#2)
  • (4) 3.50 x 6.5 inches strips in fabric choice 3 (Strip#3)
  • (12) 3.5 x 3.5 inches squares in background fabric (with a pencil or Pilot FriXion pen mark a diagonal line on each small square)

Block Construction steps:

*If you do “chain piecing” you should have this block done in less time it takes you to make dinner.  Chain piecing is sewing your units in an assembly line.

Step 1:  Sew strips together – you want the large strip in the middle.

  • Sew Strip#1 to Strip#3
  • Press seams open
  • Sew Strip#2 to the other side of Strip#3
  • When you’re all done you should have a block that measures 6.5 x 6.5 (square it up)

Step #1 Step 2: Sew background fabric to 6.5 x 6.5 block ***W A R N I N G***  Make sure if you’re chain piecing to have each block positioned the same so you don’t mess up on background fabric placement and have to unpick

  • Take (1) 3.5 x 3.5 background square block (right sides together) and line it with the top of your 6.5 x 6.5 square and sew on the line that you’ve marked.
  • Trim off the corner leaving a 1/4 inch seam allowance
  • Press the seam allowance open
  • Place another background square on the opposite side of the square and repeat the instructions above
  • Place the last background square on and repeat

Step #2 Step 3: Sewing the Units together

  • With a 1/4 seam allowance sew the corner units together.
  • Press seams open

Step #3
Origami Star Tutorial




  1. Excellent! So glad to see this in the 12 1/2″ block size – thank you! ;-)

  2. Debbie Leschisin says:

    Yeah! I have been waiting for the larger version of this block tutorial! Thank you so much!

  3. Very good post. I’m experiencing many oof these issues as well..

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  1. […] p.s Here’s the link for a 12.5 x 12.5 block!!! […]

  2. […] Origami Star by Amy of sukie don’t ya know […]

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