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Half Square Triangle Quilt Block Pattern

The half square triangle looks easy, but when you're cutting on the bias of your fabric, we've got some tips for keeping everything in working order!

Updated August 21, 2023
Half Square Triangle Block Pattern
Half Square Triangle Block Pattern
This image courtesy of FaveQuilts.com

Ready for another fun and simple block quilt pattern? This Half Square Triangle Block Pattern is the next quilt block in the Block of the Month series with Carolina Moore. Learn how easy it can be for you to create this DIY pinwheel block pattern. Whether you are following along with the quilt along or not, this is a fantastic block pattern to learn and incorporate in your next DIY quilt. Plus, the video tutorial for this pattern shows you how you can easily recreate the design in under an hour!

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  1. On the back of your lighter squares, draw a line across the bias with a marking pen, like a chalk marker.

  2. Place your lighter square that has the mark on top of one of your darker squares with the right sides of the fabric facing each other.

  3. Take these two squares to your sewing machine and stitch a quarter inch allowance on both sides of the line down the center.

  4. Once you've got both of your seams, you can cut your triangles apart right down the line.

  5. Press your seams towards the darker triangle.

  6. Using a 6.5-inch square ruler, trim your squares to 6.5-inch squares. This is done for two reasons -- to adjust the squares for the proper seam allowance and to correct for your triangles getting out of square.

  7. Arrange your squares in the pattern of your choice. Then stitch the top two and bottom two squares together.

  8. Press your seams in the middle of your two rectangles in opposite directions so you can easily nest your seams.

  9. Finally, stitch the two pairs of squares together with a quarter-inch seam allowance to get your final block.

    This part is particularly tricky when stitching through the center because you have a bunch of seams meeting all in one place.

  10. Press your remaining seams in a pinwheel pattern.

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many animal shelters take in pillows for the foster dog program. Use fabric you don't want an will not use, fold right sides together, sew three sides together. stuff with sraps of fabric until full not need to stuff like a pillow, remember that the dogs will be sleeping on them. fold over the remaining seam and stitch. I also stuff them with those infamous one sock that seems to always be missing the mate old clothes that can't e donated. Just as long as its comfy

This is my favorite BOM pattern yet!

I've been following along with the block of the month series, so I'm always excited to what's coming up next. You can't go wrong with a classic pinwheel!

The small scraps of material can be put in a net onion bag and hung outside in a tree so birds can use them for nesting material. I do the same with scrap yarn.


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