Thursday, November 21, 2013

Cheats Half Square Triangles Using Charm Squares

I love half square triangles, but sometimes they can take a while to make.

But here is a quick way to make them using charm squares.

What I used:
8 Charm Squares

16 half square triangles

Place two charm squares right side together and stitch around ALL of the edges with a 1/4 inch seam allowance.

Cut in half on the diagonal.

Cut in half again.

Ta da! You now have half square triangles!

All you need to do now is press and trim them.

Then arrange how ever you like.

I love this method as you can make HEAPS of HST's in a fraction of the time.


  1. Great little tutorial, Amy! I have seen this method before, but have never tried it. Mainly because your raw edges are now on the bias. Has this been a problem for you or am I scared for nothing??? Thanks for sharing!

    1. Hi Lorna,

      Good question re the raw edges being on the bias! I’ve never had a problem with doing them this way but can understand the reasoning for concern.

      I’ll have to investigate it a little more. I’ve just found this way the easiest when I am trying to get a project out of the way quickly. I do make them the traditional way occasionally too.

      If you do give them a try I’d love to hear how you go.

      Amy x

  2. I love this method too. HST's are a weakness of mine too :)

  3. Brilliant. I'm going to use this method from now on. Thanks!

  4. What size are the HST's when you cut them all up? Is there a formula for how big a square you need to start with to get the desired size HST?

    I love the fabrics you used, btw!!

  5. Tiffany, here is a chart I found online.


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