How to Make a Crochet Bandana with a Triangle Granny Square Pattern

Materials & tools you'll need

Step 1 — Make the triangle granny squares

Start each triangle granny square with a foundation chain of 6 stitches. Work 6 double crochet stitches into the fourth chain from the hook, then join with a slip stitch into the top of the starting chain to close the first round. For the second round, work 6 double crochet into the next chain space, then slip stitch into the top of the first double crochet made. Continue in this way — working rounds of 6 double crochet followed by a slip stitch into the top of the previous round's last double crochet — until you have completed 5 rounds in total. On the final round, work 3 double crochet instead of 6 and join with a slip stitch to form the flat base of the triangle, making sure it will sit flush against the other squares when joined. Fasten off and weave in the ends. Repeat until you have between 6 and 10 triangle granny squares depending on your preferred finished size.

Step 2 — Join the squares together

Arrange your completed triangle granny squares into a circular format, with the flat bases of the triangles forming the straight top edge of the bandana and the pointed tips forming the lower edge. Leave an opening at each end of the arrangement for the ties you will add in the next step. Join the squares together using a slip stitch seam, working along the shared edges and keeping your tension even so the joins lie flat. Take a moment to check alignment as you go — the triangle points should all face downward consistently across the full length of the bandana.

Step 3 — Add slip stitch ties

Using a slip stitch, work around the outer circumference of the joined bandana to create neat, flat edges. At each end of the bandana where the openings were left, continue working a slip stitch chain to form the ties — these will be used to fasten the bandana around your head, neck, or your pet's collar. Make each tie long enough to tie into a comfortable bow or knot when worn. Work the ties to a matching length on both sides, then fasten off and weave in the ends securely.

Step 4 — Decorate the border and finish

With the main structure complete, add a decorative border around the outer edge of the bandana using your preferred stitch pattern — single crochet for a simple, clean finish, double crochet for a slightly more open look, or shell stitches for a more decorative scalloped edge. Work the border consistently around all edges except the tie openings to give the finished piece a polished appearance. Once the border is complete, weave in any remaining yarn tails using the tapestry needle, threading each tail through the back of several stitches in at least two directions before trimming. Block your finished bandana lightly if needed to even out the cotton fabric and set the shape.

Frequently asked questions

What materials do I need to make a crochet triangle granny square bandana?
You will need blue cotton yarn (approximately 350 yards / 320 metres), a size G / 4.5mm crochet hook, a tapestry needle for weaving in ends, and optional stitch markers. US crochet terms are used throughout.

What is the finished size of the crochet triangle granny square bandana, and how can it be worn?
The finished bandana measures approximately 24 inches by 8 inches (61cm by 20.3cm). It can be worn as a headband, wrapped around the neck as a bandana, or attached to a pet's collar as an accessory.

Can the triangle granny square bandana pattern be expanded into a shawl?
Yes — the triangle granny square pattern can be expanded by making more squares and joining them into a larger rectangular piece to form a granny triangle shawl. The joining and border techniques used in this bandana project are the same skills you would use for the shawl.

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