Make This: Quarter-Square Triangle Block Tutorial
We have another basic quilt block tutorial for you today: the quarter-square triangle. This block takes the regular half-square triangle block one step further, to give you four triangles instead of two. This method also gives you two blocks at once, so it’s great for saving precious quilting time! To begin, you will need two squares the same size. Ours are cut 7.5″, to finish at 6.5″. Give yourself an inch extra of any size to account for seams and squaring up.
Draw a diagonal line on the back of one of the squares.
Match up the squares with right sides together.
Sew two seams, each one 1/4″ away from the diagonal line. Don’t sew on the actual line. We have a piecing foot (Bernina #37), which is 1/4″ to the edge of the foot, which makes this part a lot easier.
Cut the squares apart along the drawn diagonal line.
Press the triangles open, and you are to the finished half-square triangles. Here’s where it gets really fun!
Draw another diagonal line on the wrong side of one of the half-square triangles, going in the other direction. Match the squares up with opposite colors matching, nesting the seams for perfect points. You could also sew another set of half-square triangles in other colors and match up different colors to get a fun effect.
Now, sew 1/4″ away from the drawn line on both sides, just like before. I used the pink lead to show up on both the white and the purple fabrics.
Cut along the diagonal line.
Press open, and you have two quarter-square triangle blocks!
Square up the block. We trimmed our blocks to 6.5″.
With your square ruler, put the measurement that is half of the block size over the center point of the block. That will make your block perfectly square.
And there you have it! Two perfect quarter-square triangles, ready for your next quilt!
We hope you’ve enjoyed this quick tutorial, and that you’ll want to give it a go. We love to hear your suggestions for tutorials, so if you have an idea for us, be sure to leave us a comment!
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