Quarter square triangles (QSTs) are a popular quilting block that can be used in a variety of patterns. They are relatively easy to make, and they can be used to create a variety of looks, from traditional to modern.
To make QSTs, you will need two squares of fabric, one for the background and one for the print. Sew Right Sides Together (RST).
The size of the squares will depend on the size of the QSTs you want to make. For example, if you want to make QSTs that are 5.5 inches finished, you will need to start with two 6.5 inch squares.
Once you have your squares, you will need to draw a diagonal line on each square, from corner to corner. You can use a ruler and a pencil to do this, or you can use a rotary cutter and a cutting mat. I like to use the marking section of the June Tailor Half-Square & Quarter-Square Triangles cutting marking and cutting tool. It's super easy to align the tool from corner to corner on the back side of your fabric with a FriXion pen or your favorite marking chalk like the Clover Chaco Marker.
Next, you will need to sew a 1/4-inch seam along each of the drawn lines. Be sure to use a quarter-inch presser foot on your sewing machine, or mark the lines before sewing so that you can sew a straight seam.
Once you have sewn the seams, you will need to cut the squares apart on the diagonal lines. Be sure to cut along the outside of the drawn lines, so that you have two triangles from each square.
Now you will need to press the seams to the print fabric or open based on your preference. You can do this by ironing the triangles, or you can use your fingers to press the seams open.
Now it's time to create the quarter square triangle. Place the two half square triangles right sides together, making sure that the seams are perpendicular to each other. Sew a 1/4 inch seam along one side. Press the seam open.
Once the seams are pressed open, you will need to trim the triangles to size. To do this, measure the finished size of the QSTs you want to make, and then trim the triangles to that size. My favorite tool for making quarter square triangles (and half square triangles) is the June Tailor Perfect Half-Square & Quarter-Square Triangles cutting marking and cutting tool. It ensures that each block comes out perfect every time, and it's so easy to use! Simply place the tool on your fabric, line up the markings, and cut. The tool will do the rest, leaving you with perfectly sized and centered quarter square triangles.
Now your QSTs are finished! You can use them to make a variety of quilt blocks, or you can use them as appliqués.
Here are a few tips for making QSTs:
Use a quarter-inch presser foot on your sewing machine, or mark the lines before sewing so that you can sew a straight seam.
Use a scant 1/4 inch seam when sewing your triangles together to ensure that your blocks end up the correct size.
Use a rotary cutter with a sharp blade and a ruler to ensure that your cuts are precise and accurate.
Press the seams open after sewing the triangles together.
Trim the triangles to size after pressing the seams open.
With these tips, you can make beautiful QSTs that will add a touch of elegance to your quilts. Have fun experimenting with different fabrics, colors, and patterns to create your own unique quilt or select one of my patterns to follow.
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