Half-square triangles can be arranged in so many ways! Today I’m sharing 13 quilt blocks you can make with this simple unit. Be sure to save this post — you’ll want to refer back to these HST layouts when designing your next quilt.
Learning how to make half-square triangles is an essential quilting skill because they are used in a lot of patterns. If you don’t already know how to make them, head over and read Carole’s HST tutorial. I also recommend investing in some high-quality fabric marking pens and a quarter-inch patchwork ruler set.
I used “triangles-on-a-roll paper” to make my 2-inch HSTs for this post. It’s not the most economical way to make them, but it is fast. All of the half-square triangle layouts shown in this post require 16 HST units, but you can use these layouts with any size half-square triangles you want.
I hope you find some inspiration from my list of half-square triangle layouts. Enjoy!
1. Pinwheels
Pinwheel blocks are fun. They give the illusion of movement. To make a pinwheel, you need four half-square triangles with two contrasting colors. You arrange them around a central point, turning each unit 90 degrees. Just make sure you orient the pinwheels to “spin” in the direction you want.
2. Sails
Pinwheel blocks are fun. They give the illusion of movement. To make a pinwheel, you need four half-square triangles with two contrasting colors. You arrange them around a central point, turning each unit 90 degrees. Just make sure you orient the pinwheels to “spin” in the direction you want.
3. Diamonds
Diamond units are created by arranging four half-square triangles around a central point, with all the like colors touching. When several diamond units are placed together, it gives a secondary hourglass design. Do you see it?
4. Star
When you take the diamond block from above and rotate the half-square triangles in each corner by 180 degrees, you create a star design. Star quilts give off major farmhouse vibes. You see them everywhere. This HST block kind of looks like a flower, too.
5. Radiate
Building upon a central diamond, you can expand your quilt block with triangles that appear to “radiate” from the center. It creates an almost kaleidoscope effect. This half-square triangle layout would look great as a large ombre quilt.
6. Diamond Outline
Another way to build on a central diamond unit is to frame it with a diamond outline using more half-square triangles. It’s simple to do and you can add as many rows as you like.
7. Parallelograms
When two half-square triangles are placed next to each other and one is rotated 180 degrees, you get a parallelogram unit. Quilts with this design look bold and modern because of the sharp juxtaposition of colors. It would also look great as a border.
8. Zigzags
If you take parallelogram units and alternate them with points facing, you create a zigzag design. Several rows of these zigzags will give you a timeless chevron quilt.
9. Feathers
A slight variation to the chevron design is the feather design. It looks great as a border around quilts.
10. Flying Geese
Flying geese are a common type of quilt block, but you can also create faux flying geese with half-square triangles.
11. Diagonal Stripes
If you want to add a lot of stripes to your quilt, it makes the most sense to use long strips of fabric. However, you can also form stripes with half-square triangles by rotating alternating units in a row by 180 degrees and staggering them with the following row.
12. Modern X
Half-square triangle stripes don’t all have to go in the same direction. By rotating some of the stripes, you can create a modern X design.
13. Fireball
The Fireball quilt block is another design that gives the illusion of movement. It takes zigzag units and places them in a circular pattern. It’s spikey and fun.
In Conclusion
These 13 quilt blocks are just a small sampling of the designs you can make using half-square triangles alone. When you add in square units, the possibilities are endless.
What is your favorite half-square triangle layout? Do you have plans to use any of these in an upcoming quilt? Let us know in the comments below.
Cara
I do love HSTs. Would be fun to combine a lot of these techniques into a big creation