Quilting

16 Half Square Triangle Quilt Patterns

Some quilters may not consider a half square triangle an actual quilt block. After all, it plays a major part in many block patterns. However, I definitely consider it one, and I think it is one that stands quite well on its’ own. That’s why I came up with this half square triangle tutorial.

When laid out in an effective way, this simple two-color creation can produce stunning quilts. Just take a look at these nine of the sixteen half square triangle block layouts highlighted in this article.

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock
9 of the 16 layouts in this article. Half square triangle blocks are so versatile.

Half square triangles are simple to make, and a quilt top, like one of these, can easily be made in a day. Just think of all of the color combinations that can be used. And don’t forget, you are not just limited to one of the layouts I’ve pictured here. The possibilities are endless.

Here are 27 Stunning Layouts

If you would like to try your hand at one of these half square triangle quilts, here are the instructions.

Quilt Top Specifications

The measurements provided in this tutorial make a finished quilt top that is 40 ½ inches square. It is made up of 64 half square triangles that are 5 ½ inches square.

How to Make a Half Square Triangle

Supplies Needed

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock
  • Fabric – 2 colors (or color families) – I used one grey fabric and various pink scraps
  • Rotary Cutter
  • Cutting Mat
  • Quilter’s Ruler

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Cutting

Cut 32 squares out of each color fabric (A & B) in the following sizes:

Color A (Grey in this example) – 6 ½ inches square – 32 total

Color B (Shades of pink in this example) – 6 ½ inches square – 32 total

Assembly

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Place one square of color A on your work surface, right side facing up.

Next, place once square of color B on top of color A. Right sides should be facing.

Using your ruler, draw a diagonal line from one corner to the other.

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Using a ¼ inch seam allowance, sew down both sides of the line.

Once sewn, using your ruler and rotary cutter, cut the block in half, along the line you drew earlier.

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Press open, pressing to the darker fabric.

Finally, trim the blocks down to 5 ½ inches square.

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Now comes my favorite part of the whole process, choosing a design. Start laying out your blocks and try out different patterns. Once you have found the one you like, sew the blocks together.

16 Stunning Layouts

All of the patterns below are made up of 64 half square triangle blocks. Each one measures 5 1/2 inches square before sewing. Using a 1/4 inch seam allowance, the quilt top should measure 40 1/2 inches square.

Tip: It can be hard to remember which layout you like best, so snap a picture with your phone of the various ones you tried. Then look at them later and decide which one is your favorite.

Simple

Placing all of the half square triangle blocks in the same direction is a simple, yet effective look. It is a good way to highlight the various scrap fabrics used.

Chevron

Chevron patern

A chevron design is always a winner and quite striking. With these colors, the various pinks sparkle.

Diagonal Squares

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

When making my wall hanging I had a hard time deciding between this one and the chevron. This is another bold layout that makes the pinks pop.

Stripes

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Stripes, always a popular layout, make a bold graphic design.

Virginia Star

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Use the half square triangle blocks to create the traditional Virginia Star quilt block. Using bold colors really makes the design show. Can you find the mistake? Good thing this wasn’t the layout I decided to go with!

Pinwheel

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Another favorite, laying out the blocks in a pinwheel pattern gives the design a lighter appearance.

Bull’s Eye

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

Bold and graphic, a bull’s eye pattern is striking. I can imagine all kinds of design possibilities.

Fractured Chevron

This block layout is a different take on the traditional chevron pattern, and would look really good with each pink arrow section being different color.

Spider

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

This layout reminds me of a spider with its’ long legs. The spiral effect is quite striking.

Swirl

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

A bit like the bull’s eye pattern, the swirl gives an interesting off-center look to the quilt top.

Wonky Diamonds

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

These wonky diamonds look like they are dancing across the design, and they show off the various fabrics.

Fractured Bull’s Eye

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

With just a few block rearrangements, the bull’s eye layout turns into this mesmerizing design. Using ombré fabrics would really make this pattern shine.

Topsy Turvy

A variation of the fractured bull’s eye, this layout resembles an individual quilt block. I think it would be quite striking in black and white.

Inverted Arrows

This pattern is powerful and quite eye-catching. When deciding which layout I wanted to use, this was one of the ones I was thinking about doing.

Squares in Squares

A bold design, this squares in squares layout presents a powerful graphic.

Fractured Flying Geese

These half square triangle flying geese are flying in all four directions and give the design plenty of movement.

Which Layout Will You Choose?

I decided to go with the chevron pattern, and I couldn’t be happier. It hangs over my desk. Which layout is your favorite?

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock
I love my half square triangle chevron quilt top. I just need to quilt it now.

These sixteen patterns are just the beginning. The design possibilities are only limited to your imagination.

Want More Layouts?

Here are 11 more designs for your half square triangles.

With this half square triangle tutorial, you can whip up 64 blocks in no time. The fun part is in laying them out and deciding which one you like best. Once you’ve done that, it’s an easy quilt top to assemble.

Happy Quilting!

16 Half Square Triangle Quilt Patterns and a Half Square Triangle Tutorial - createwithclaudia - #quilting #quiltblock

17 Comments

  1. Nancy Ann Belsky

    April 5, 2019 at 9:11 PM

    Wow!! What a nice selection of options for the humble Half Square Triangle. Thanks

    1. createwithclaudia_7j76hs

      April 6, 2019 at 9:47 AM

      Thank you. It really is a versatile block. Half the fun is rearranging the blocks. It’s like coloring with fabric.

  2. Brenda King

    May 1, 2019 at 4:02 AM

    Love your work, Claudia! And your color sense. Thanks for sharing! : ) Brenda, Bend, Oregon

    1. createwithclaudia_7j76hs

      May 1, 2019 at 4:53 PM

      Thanks so much Brenda! I really appreciate it.

  3. Marion Fitzsimmons

    October 7, 2019 at 3:25 PM

    YOUR great 1/2 square presentation came at time when I was pulling my hair out trying to get a good result with all my pieces. Thank you, so much. Still believe color combinations are what make or
    break a quilt — except those made with scraps.

    1. createwithclaudia_7j76hs

      October 8, 2019 at 7:49 AM

      Thanks so much! I agree, color combos are important, but I also love scrap quilts. It’s fun to play with scrap colors too.

  4. Dian

    October 21, 2019 at 10:49 AM

    Beautiful options! New to quilting – questions on supplies. How many yards of fabric total does this size quilt require? Thanks!

    1. createwithclaudia_7j76hs

      October 23, 2019 at 6:39 AM

      Thank you. That is a tough question for this quilt since I used scraps. If you were going to use the same fabric for one of the halves (for example the grey I used in the photos) you would need about 1 1/2 yards of the grey fabric. For the other color (like the pinks I used in the photos) you would need a total of 1 1/2 yards made up of various fabrics. That would be sufficient to make a quilt top this size. However that does not include fabric requirements for the back and the binding.

  5. heiko chandler

    December 9, 2019 at 1:24 AM

    My problem is which way to press the seams

    1. createwithclaudia_7j76hs

      December 10, 2019 at 6:31 AM

      The general way to press is towards the dark fabric, but that is not a rule. Sometimes I need to press to the light fabric, depending on the block.

  6. Sandra Theal

    March 12, 2020 at 1:52 PM

    Yes love chevron.crisp and clean looking

  7. Lora

    April 18, 2020 at 4:43 PM

    Do you know about how many squares you would need to make a full-size quilt?

    1. createwithclaudia_7j76hs

      April 23, 2020 at 7:02 AM

      It all depends on what size you make your half square triangles and your quilt. The ones in this article (pink & grey) are 5 1/2″ each so if you want a quilt about 80″ x 100″ (double/queen) you’ll need about 320 half square triangles. You can make the half square triangles larger so you don’t have to make as many. Thanks.

  8. Patsy

    August 31, 2020 at 6:55 PM

    This is awesome, just what I was looking for! So many possibilities with HST. I can’t wait to experiment.

    1. createwithclaudia_7j76hs

      September 1, 2020 at 6:37 AM

      I’m so glad you like it. Thanks for reading and have fun making your quilt.

  9. Adriene

    September 1, 2020 at 9:47 AM

    Thank you, Claudia. I love hst and was looking for block patterns and found your blog. Well done. This will come in handy. I make oodles of baby quilts (not too babyish because I want them to love their quilt through childhood and beyond–LOL) and hst give me loads of options.

    1. createwithclaudia_7j76hs

      September 2, 2020 at 5:18 AM

      That is so great to hear. Thanks for letting me know. Glad you found lots of options. I have 11 more layouts in this article https://www.createwithclaudia.com/2020/01/more-half-square-triangle-patterns/

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