How to Make Half Square Triangles HSTs from Squares – Triangle Masterclass

Triangles quilts are absolutely beautiful, but they can also be intimidating. Getting your blocks to turn out the right size with all of your points in the right place can be a bit of a challenge.

That’s why we created the Triangle Masterclass, a collection of eight videos focusing on different types of triangle units that are commonly used in quilts.

In today’s video we’re making half square triangles, which are commonly called HSTs. We’re starting out with two squares that are 1 inch larger than your finished HST.

We cover the process in detail of making HSTs from squares, including what a scant quarter-inch seam is, how to check you’re seam is correct BEFORE you cut the triangles apart, how to trim to make sure your seams go right out into the corner and some common mistakes to look out for.

You can use each tutorial on its own to learn the techniques for whatever quilt you are working on. Or you can get our pattern Raspberry Sherbet which uses all of the techniques we cover in the series. It comes in four sizes, but we made the lap version for this tutorial series.

Raspberry Sherbet is fat quarter friendly and we have quilt kits using the fabrics I used while supplies last. You’ll get the same fat quarters I used and get to pick your own background to customize it to your tastes.

We also have created a Triangle Masterclass category on our website that has in-stock fat quarter bundles that would work for this quilt in the lap size. Just add background and you’ll be good to go.

I can’t wait to make this quilt with you!

Join the Triangle Masterclass Quilt Along by downloading the Raspberry Sherbet pattern:
Raspberry Sherbet quilt kit (limited quantities):
Fat quarter bundles that would work for the lap sized version (just add 3 yards of background) plus other useful supplies:

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