Creative Grids 45° Half-Square Triangle Ruler (8½”)

If half-square triangles are part of your go-to lineup, this ruler makes the process faster and more accurate. You can cut squares and triangles from the same strip, thanks to the trimmed tip that lines everything up just right.

I also use it for trimming HSTs. The angled edge and clear markings help me square things up quickly without guessing. It’s easy to see, easy to line up, and satisfying to use.

The dashed ¼” seam allowance is printed around the full edge of the ruler, so you always know where to cut and sew. It works up to an 8” finished size, which covers most block-based projects.

Like all Creative Grids rulers, it slides when you need it to, then grips down when you press. No slipping. Just clean, consistent triangles ready to stitch.