Sew half-square triangles from strips? Learn how (video + fabric giveaway!)

Framed quilt from A Cut AboveSome of the most beautiful quilts on earth are chock-full of what can be a most tedious pieced unit: the half-square triangle. Popular designer Gerri Robinson is captivated by those little light-and-dark units, and she features them front and center in many of the quilts in her book, A Cut Above—but she doesn’t bat an eye at making them. So, how does she get a lot of half-square triangles sewn in a little bit of time?

A Cut Above is filled with quilt patterns for precuts, and Gerri needed a way to make quick half-square triangles that suited the cuts of fabric she uses—like Jelly Rolls. She says, “The use of special rulers and tools really expands your options.” (If you’re a quilter who goes gaga over gadgets, you know she’s right!) When she found a little tool called the Easy Angle Ruler, she knew she had found a lifelong quilting friend.

In the video below, Gerri demonstrates how pairing Jelly Roll strips with the ruler shortens her time spent making half-square triangles—and allows her to easily chain piece a whole mess of ’em at a time.


Watch the “How to Make Half-Square Triangles” video on YouTube

Call or visit your local quilt shop to learn more about the Easy Angle Ruler.

Now that you’ve seen how Gerri makes Jelly Roll-friendly half-square triangles, take a peek at how she uses them and other units to make her incredible quilts—all from precuts! Here’s a look at the projects from A Cut Above, categorized by the precuts you’ll use.

2½" and 5″ Charm Square Quilt Patterns

Charm square quilt patterns
From left: “Trail of Stars,” “Autumn’s Glow,” and “Wild Rose”

10″ Layer Cake Quilt Patterns

Layer Cake quilt patterns from A Cut Above
“Galaxy” and “Dancing among the Stars”


Make the “Friendship” quilt on the left; then use your leftover fabrics to make “Do-Si-Do” on the right.

2½" Jelly Roll Quilt Patterns

Jelly Roll quilt patterns from A Cut Above
Use one Jelly Roll to make “Buttoned Up” on the left; use leftover fabrics to make the “Buttoned Up Pillow” on the right.

Jelly Roll quilt patterns from A Cut Above
Use one Jelly Roll to make “Carefree” on the left; use leftovers to make the “Buttoned Up Boxed Cushion” on the right.

18″ x 22″ Fat Quarters

Fat quarter quilt patterns from A Cut Above
“Rugby Stars” and “Moonlight”

Fat quarter quilt patterns from A Cut Above
Make “Board Game” on the left; then make a “Board Game Pillow” from your leftovers.

See more projects from A Cut Above.


FABRIC GIVEAWAY ALERT! Ready to play with precuts? Our friends at Red Rooster Fabrics have generously donated a stack of Gerri’s new “Favorite Things” fabric to give away to you. To win the stack and a copy of A Cut Above, tell us in the comments how you make half-square triangles—we’d love to hear your favorite technique! We’ll choose a random winner one week from today and let you know by email if you win.

Favorite Things fabric by Gerri Robinson for Red Rooster

A Cut AboveANOTHER GIVEAWAY ALERT! Gerri’s joining in the fun with her own giveaway of autographed books, plus A Cut Above magnets, pins, and bookmarks from quiltdots.com. Visit Gerri’s blog and enter to win these fun prizes from Gerri herself!

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Thanks to all who entered the drawing! The winner is Pearl, who says:

“How do I make half-square triangles? Not very well, usually. I have struggled through a lot of attempts, often ending up with something that wasn’t very square. Most recently, I’ve resorted to just making them bigger and then trimming them down to size. Gerri’s approach looks like something I could master…think I’ll give it a try.”

Pearl, we’ll email you about your prize. Congratulations!


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