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.
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
- 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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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
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.
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.
Press open, pressing to the darker fabric.
Finally, trim the blocks down to 5 ½ inches square.
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.
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.
A chevron design is always a winner and quite striking. With these colors, the various pinks sparkle.
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, always a popular layout, make a bold graphic design.
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!
Another favorite, laying out the blocks in a pinwheel pattern gives the design a lighter appearance.
Bold and graphic, a bull’s eye pattern is striking. I can imagine all kinds of design possibilities.
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.
This layout reminds me of a spider with its’ long legs. The spiral effect is quite striking.
A bit like the bull’s eye pattern, the swirl gives an interesting off-center look to the quilt top.
These wonky diamonds look like they are dancing across the design, and they show off the various fabrics.
Fractured Bull’s Eye
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.
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.
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?
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.
Nancy Ann BelskyApril 5, 2019 at 9:11 PM
Wow!! What a nice selection of options for the humble Half Square Triangle. Thanks
createwithclaudia_7j76hsApril 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.
Brenda KingMay 1, 2019 at 4:02 AM
Love your work, Claudia! And your color sense. Thanks for sharing! : ) Brenda, Bend, Oregon
createwithclaudia_7j76hsMay 1, 2019 at 4:53 PM
Thanks so much Brenda! I really appreciate it.
Marion FitzsimmonsOctober 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.
createwithclaudia_7j76hsOctober 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.
DianOctober 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!
createwithclaudia_7j76hsOctober 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.
heiko chandlerDecember 9, 2019 at 1:24 AM
My problem is which way to press the seams
createwithclaudia_7j76hsDecember 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.
Sandra ThealMarch 12, 2020 at 1:52 PM
Yes love chevron.crisp and clean looking
LoraApril 18, 2020 at 4:43 PM
Do you know about how many squares you would need to make a full-size quilt?
createwithclaudia_7j76hsApril 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.
PatsyAugust 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.
createwithclaudia_7j76hsSeptember 1, 2020 at 6:37 AM
I’m so glad you like it. Thanks for reading and have fun making your quilt.
AdrieneSeptember 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.
createwithclaudia_7j76hsSeptember 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/
JoleenDecember 6, 2020 at 11:38 AM
Shouldn’t you press your fabrics first?
createwithclaudia_7j76hsDecember 6, 2020 at 12:14 PM
Dianne NashDecember 9, 2020 at 12:29 AM
Looking forward your pattern bandanaquilt.
createwithclaudia_7j76hsDecember 9, 2020 at 9:14 AM
Great. Here is a link to the bandana quilt pattern. https://www.createwithclaudia.com/2020/12/how-to-make-a-bandana-quilt/
Quilting TangentDecember 28, 2020 at 3:31 PM
Thank you for all the wonderful layouts.
createwithclaudia_7j76hsDecember 28, 2020 at 5:21 PM
Thanks, I appreciate it!
Cindy JonesJanuary 21, 2021 at 4:19 PM
When I lay the squares out the seams and angles line up. Once I sew them with 1/4 inch seams, some angles do not line up.
How can I fix this?
createwithclaudia_7j76hsJanuary 22, 2021 at 6:09 AM
I’m not sure why they are matching up. You could try pinning where the two squares join up on the angle. Or try nesting the the seams and pinning. Good luck.
Cindy JonesJanuary 21, 2021 at 4:26 PM
I used 3 inch squares
Bobbie BrandelJanuary 18, 2022 at 6:28 PM
I cannot thank you enough for these patterns. I just had enough scraps to make the one with 5 stars. It is working out perfectly. Again, THANK YOU!!!
createwithclaudia_7j76hsJanuary 19, 2022 at 5:11 AM
That’s so great to hear. Thanks for reading and letting me know.
Kaitu'uOctober 3, 2022 at 6:04 AM
Hi I’m new to quilting. Thanks for sharing. Love all the patterns.
createwithclaudia_7j76hsOctober 4, 2022 at 6:20 AM
I’m so happy to hear that. Thank you.
Peggy HoltOctober 15, 2022 at 2:01 PM
Claudia, I just watched your marvelous video. That was certainly a labor of love. Did you know that there are actually 256 different ways to create a four-patch block from hst? It is such a versatile unit. Your layouts are lovely and many show using more than one of those 256! The combinations appear to be endless. I love hst so much I had to write a book, and it barely covered the basics. Again, my kudos to you for such a wonderful video. Well done! I’m going to go explore here on your site. I like what I see. Then I may just have to go play with some triangles!
createwithclaudia_7j76hsOctober 18, 2022 at 6:50 AM
Have fun with your hsts. They really are fun!!
Renee AtkinsonMarch 8, 2023 at 5:06 PM
Great article Claudia!
createwithclaudia_7j76hsMarch 22, 2023 at 8:12 AM