How to Crochet a Triangle Granny Square: Easy Step‑by‑Step Pattern

Triangle granny squares are a fun, geometric twist on the classic granny square. They work up quickly, are ideal for using up small amounts of yarn, and can be joined into blankets, cushions, bags or used individually as coasters and appliqués. This pattern uses three colors and simple stitch groupings (including bobbles) to create a textured triangular motif.

Materials Needed

• Yarn – Loopara 4ply combed cotton (Green #24, Yellow #43, Pink #59)
• Hook – 2.0 mm
• Scissors

Abbreviations

ch = chain, sc = single crochet, dc = double crochet, tr = treble (treble crochet), sl = slip stitch, bobble = 3-dc bobble (as worked in pattern)

Step-by-Step Tutorial

How to Crochet a Triangle Granny Square

1. R1 (using Green #24): Make a magic ring, ch, work 6 sc into the ring, sl to join. (Close and secure the ring.)
2. R2: [(3 dc bobble, ch 5, 3 dc bobble, ch 3) ] — repeat this sequence 3 times around, sl to join.
3. R3 (using Yellow #43): For each corner repeat [(3 dc bobble, ch 3, tr, ch 3, 3 dc bobble), ch 3, sc, ch 3] — repeat 3 times, sl to join.
4. R4 (using Pink #59): Work (ch 3, 2 dc, ch 3, 3 dc) for the point, then [(ch, 3 dc) three times, ch 3, 3 dc] twice, (ch, 3 dc) two times, ch, sl. Finish and weave in ends.

Finishing and Uses

Weave in all ends securely. Block lightly if desired to even out stitches and open the lace. Combine multiple triangles into larger motifs: you can join two triangles to make a square, or join many triangles into a geometric blanket or shawl. These motifs also make attractive appliqués, cushions or bag panels.

Notes & Tips

• Maintain consistent tension throughout, especially when making bobble stitches, to keep the triangle shape even.
• When changing colors (Rounds 3 and 4), carry yarn neatly or fasten off and join to avoid bulky joins.
• Pay attention to stitch placement in Round 4 as it defines the final triangular shape; counting stitches helps prevent gaps or uneven sides.
• If the triangle curls or flares, try adjusting hook size slightly or blocking the finished piece to the desired shape.