Half Granny Square Crochet Pattern (Easy Triangle for Blankets, Shawls & More)
If you’ve ever made a granny square blanket, shawl, or hair bandana and struggled with uneven edges — this is your fix. The half granny square is a simple triangular version of the classic granny square. It’s perfect for straight edges on blankets, beautiful shawls, and modern crochet projects that need clean shaping.
In this post, I’ll show you exactly how to crochet a half granny square step-by-step — even if you’re a beginner.
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crochet Triangle granny square
A half granny square is a triangular crochet motif made with the same stitches as a traditional granny square (double-crochet clusters).
Pattern Summary
- Skill Level: Beginner
- Yarn: Any (great for scraps)
- Hook: recommended crochet hook matching the yarn weight
- Construction: Worked in rounds
Why You’ll Love This Pattern
- ✔ Fixes uneven blanket edges
- ✔ Perfect for triangle shawls
- ✔ Quick and beginner-friendly
- ✔ Great stash buster
- ✔ Matches classic granny squares perfectly
When to Use a Half Granny Square
Use this pattern when:
- Finishing a granny square blanket edge
- Making triangle scarves or shawls
- Creating modern geometric designs
- Filling gaps in granny layouts
The half granny square works beautifully alongside the traditional granny square. If you haven’t mastered that yet, I highly recommend starting with my granny square crochet pattern, as the stitches and structure are exactly the same.
materials needed
- 4-Ply cotton yarn weight (in color/s of your choice)
- You can use any yarn you have in your stash just as long as the yarn weight of your half granny matches the yarn weight of the rest of your project
- D/3 or 3.0 mm to 3.25 mm hook
- Yarn needle
- Scissors
- Standard clothes hanger
- Optional: hot glue gun (for bow)
- Free pattern
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Abbreviations (+ UK Terms)
- ch – chain stitch
- ch1-sp – chain 1 space
- sc – single crochet
- dc – double crochet stitches (US)
- tr – treble crochet (UK)
- sl st – slip stitch
- yo – yarn over
Finished Size
Size depends on the yarn and crochet hook combination as well as the number of rounds crocheted.
Half Granny Square Pattern (Step-by-Step)
US TERMINOLOGY
Row 1
- To start – make a magic ring (see image above)
- Ch 4 (3ch for your first stitch (dc(, plus 1ch to serve as your spacer between the dc and next 3 dc’s)
- 3 dc, ch 2, 3 dc
- ch1
- dc
- pull the magic ring closed and
- Turn
Row 2
- Ch 4 (counts as dc + ch)
- 3 dc into the next ch-1 sp (space)
- ch1
- 3 dc, ch 2, 3 dc
- ch1
- 3 dc inot ch1-space
- ch1
- dc (into ch-space or 3rd ch of previous row)
- Turn
Row 3
- Ch 4
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc, ch 2, 3 dc sts in ch2-space
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- dc into ch space
- Turn
Row 4
- Ch 4
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc, ch 2, 3 dc
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- 3 dc into the ch-1 space
- ch1
- dc into ch space
- Bind off and weave in the ends
pro tips
- Keep your tension loose to avoid curling
- Block your square for a professional finish
- For a large half granny triangle, add more rows.
- To crochet a half granny square in different colors, change to a new color after each row.
- The number of half square triangles, will depend on your project.
Common Mistakes
- Forgetting to add the dc at the end of the round
- Too tight tension (causes curling)
- Skipping spaces between clusters
How to Use Half Granny Squares in Projects
- Blanket Edges – Use half squares to straighten edges on granny blankets.
- Shawl – Join multiple triangles to create stunning shawls.
- Modern Crochet Projects – Combine with full squares for geometric layouts.
FAQ
- What is a half granny square? – A half granny square is a triangular crochet motif made using double crochet clusters.
- What is a half granny square used for? – It’s used for blanket edges, shawls, and shaping crochet projects.
New to granny squares? Start here with my easy granny square pattern for beginners — it’s the perfect next step after learning this triangle version.
Granny Square Crochet Projects You Might Also Like
- Granny Square Blanket Pattern – If you’re ready to try a slightly bigger project, this granny square blanket pattern is a great next step. It’s relaxing, beginner-friendly, and perfect for using different colours and leftover yarn.
- 25 Granny Square Projects you can make today
- Popular Granny Square to use for blankets
- Free square pattern – solid granny square
final thoughts
The half granny square is one of those simple techniques that completely levels up your crochet projects.
Once you start using it, you’ll wonder how you ever made blankets without it.
Crochet granny squares are so versatile and can be used in so many different projects.
Share Your Work
If you try this pattern, I’d love to see it!
Tag me or share your project — it honestly makes my day seeing your creations
Whatever you do…
Happy Crocheting!
