10+ Scrappy Half Square Triangle Quilt Patterns

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half square triangle quilt patterns

Quilts with half square triangles come alive with exciting shapes like stars, pinwheels, snowflakes, hearts, spools, and even pineapples. Here are more than 10 of my favorite scrappy HST quilt patterns for quilters of any skill level.

These free quilt patterns (all with step by step photo tutorials) are a great way to use up scraps, coordinating fabric bundles, or fabric yardage.

Optional: If you love to use your Accuquilt fabric cutter like I do, you know that hst pieces cut using an Accuquilt sew together faster and more accurately than anything else. No rulers or rotary cutter needed!

Most of the quilts below are Accuquilt friendly. They all include other shortcut methods for sewing half square triangles as well. See all my Accuquilt friendly quilts.

Star Quilts with Half Square Triangles

fat quarter fancy star quilt

My Fat Quarter Fancy Star Quilt Pattern is perfect for a fat quarter bundle or a pile of scraps! It is made up of simple 4-patch blocks with squares and half square triangles. Plus I’ll show you 3 amazingly different ways to arrange your blocks – all with stars!

scrappy quilt with half square triangles

The Summer Snowflake Quilt Pattern combines a pinwheel and a star to make a quilt that sparkles and shines! I made a special printable mat (and a short video) to help you layout your quilt blocks perfectly every time.

big star quilt from hst blocks

How big can a star quilt get? It’s up to you with my free Big Star Quilt Pattern. I used huge 8” half square triangle blocks so the quilt above finished at 64” x 64”. However, this pattern is easy to adjust and make other sizes too. The diagonal lines in this quilt add exciting movement and give you lots of fun shapes to quilt in.

This is my favorite picnic quilt.

scrappy blue quilt with half square triangles hst blocks

Make a traditional quilt block design look modern with the exciting 5 Patch Star Quilt Pattern. I sewed scrappy half square triangles cut from yardage throughout my stash. Even though I used my Accuquilt to cut the pieces right sides together (a great time saver), this tutorial shows the 2-at-a-time HST method with a line drawn on half the squares.

friendship quilt pattern

The Friendship Star Block is a beloved favorite the world over! Sew a throw sized Friendship Star Quilt using this popular layout. The original design uses only 4 different fabrics, but scrappy triangles would make it even more fun.

Baby and Mini HST Quilt Patterns

Show love any time of the year with a darling HST Heart Quilt wall hanging. This pattern is also so easy to customize and make larger or smaller depending on the size of half square triangles that you sew. I love scrappy quilts like this!

My darling Scrappy HST Baby or Lap Quilt is the perfect use for coordinating scraps that you have left over from a fat quarter project. That’s exactly why I made it!

Play with half square triangles as you sew up the Childs Play Baby Quilt Pattern. Everything you need to know to make this 42” square baby quilt is included in the blog post.

Star quilts are addictive! To save you from doing quilt math, I made a baby version of the Big Star Quilt Pattern above. The Star Baby Quilt Pattern is fast and easy and super impressive to give at a baby shower. It’s also Accuquilt and fat quarter friendly.

For a different look, use a contrasting print for the background fabric.

Modern Quilts with HSTs

What do you get when you combine black and white HSTs with a charm square bundle? The Charm Square Spool Quilt! This amazing quilt will turn out scrappy looking whether you use a charm square bundle or simply cut a bunch of 5” squares from your scrap bin. No square ruler required (but I love having them in lots of sizes).

Photo credit: SewCanShe.com

Have you ever seen a scrappy pineapple? My Pineapple Fruit Quilt has pink, turquoise, yellow, and orange pineapples. You simply must see it. And make your own too!

Scrappy half square triangles turn into modern Christmas trees in the Little Trees Quilt. This holiday quilt pattern uses big blocks for fast piecing to get you in a happy spirit no matter what time of year it is.

I already shared with you 10 free scrappy HST quilt patterns, but of course there are more!

Don’t miss this blog post that shares layouts to make 4 big graphic quilts. You’ll love how quickly you finish making these Modern HST Quilts. The diagonal seams will be easy when you sew the hst units two at a time. You can easily adapt this pattern to make quilts in different sizes too.

You’ll also love:

Let your sewing machine get busy sewing hst blocks today.

Happy Quilting,

Disclosure: some of my posts contain affiliate links. If you purchase something through one of those links I may receive a small commission, so thank you for supporting SewCanShe when you shop! All of the opinions are my own and I only suggest products that I actually use. 🙂