How to Crochet Granny Squares: Easy Step-by-Step Guide
Soft yarn squares piling up on your coffee table bring a cozy, classic charm to any room. These motifs are a staple for anyone building a handmade collection because they offer a reliable rhythm once you learn the basic cluster stitch. Working with these blocks allows you to experiment with color changes and block arrangements without committing to a massive time investment. Whether you want to piece together a small pouch or a large throw, mastering these fundamental shapes gives you the confidence to adapt your own layouts. You will find that these patterns turn yarn scraps into something beautiful.

Why You’ll Love This Pattern
This beginner-friendly crochet coaster set is an ideal weekend project that works up in under an hour. Because the pattern relies on basic stitches, you can focus on maintaining an even tension, which makes it a relaxing way to practice your craft while building a functional home accessory. The small size makes these coasters perfect for using up leftover yarn bits from larger projects, ensuring that no quality material goes to waste. You will appreciate how quickly these accumulate, allowing you to build a full set of four coasters in a single afternoon.
I managed to whip up a set of these for my living room in one evening, and they lay perfectly flat without any curling at the edges.
— Sarah, casual crocheter
Pattern Overview & Skill Level
- Skill Level: Beginner
- Approximate Time: 15 minutes per coaster
- Construction: Worked in continuous rounds from the center outward to create a circular shape
- Finished Dimensions & Sizing: Approximately 4 inches in diameter
Materials & Supplies Needed
- Yarn: Worsted #4 weight, 100% cotton yarn (recommended for absorbency), approximately 15 yards per coaster.
- Hook Size: 5.0 mm (H-8).
- Notions: Tapestry needle for weaving ends, stitch marker to keep track of the start of rounds.
- Safe yarn substitutions: Acrylic yarn can be substituted for cotton, but keep in mind that acrylic is less absorbent and may melt if exposed to extremely hot mugs. Using a lighter weight yarn will result in a smaller coaster, while a heavier yarn will result in a larger, thicker coaster.
Stitch Guide & Abbreviations (US Terms)
- MR: Magic Ring.
- ch: Chain.
- sc: Single crochet.
- inc: Increase (work 2 sc in the same stitch).
- sl st: Slip stitch to join.
- st(s): Stitch(es).
Step-by-Step Pattern Instructions
Circular Coaster Body
- Rnd 1: Start with a MR. Work 6 sc into the ring. Place a stitch marker in the first st to track the start of your round (6 sts).
- Rnd 2: Work 2 sc in each st around (12 sts).
- Rnd 3: 1 sc in next st, inc in next st repeat from * to * 6 times (18 sts).
- Rnd 4: 1 sc in each of the next 2 sts, inc in next st repeat from * to * 6 times (24 sts).
- Rnd 5: 1 sc in each of the next 3 sts, inc in next st repeat from * to * 6 times (30 sts).
- Rnd 6: 1 sc in each of the next 4 sts, inc in next st repeat from * to * 6 times (36 sts).
Finishing
Once you complete Rnd 6, join the round with a sl st into the first stitch of the round. Cut your yarn, leaving a 6-inch tail. Pull the tail through the loop on your hook to fasten off. Use a tapestry needle to weave the end securely into the back of the work, trimming any excess yarn flush with the fabric. Repeat this process for each coaster in your set.
Care & Washing Instructions
- Machine wash your cotton coasters on a gentle cycle in cool water to prevent shrinking.
- Lay the coasters flat on a clean towel to dry, ensuring they are shaped into a perfect circle while damp.
- Avoid using fabric softener, as this can coat the cotton fibers and make them less absorbent for your drinks.
Pro Tips & Common Mistakes to Avoid
Maintain consistent tension throughout the project by keeping your yarn comfortable—not too tight—as you pull through each loop. Always move your stitch marker up to the first stitch of the new round as you work; this prevents you from losing your place or missing an increase. Weave your ends in multiple directions through the stitches on the back side of the coaster to ensure they do not pull out over time. If you decide to adjust the size, simply continue the pattern of adding one extra single crochet between increases for every new round, but remember that a larger coaster will require more yarn yardage per piece.
Frequently Asked Questions
Can I use a different yarn weight for this pattern?
Yes, you can use any weight of yarn, but changing the weight will significantly alter the final diameter. If you use a thinner yarn, you may need to add additional rounds to reach the desired 4-inch size.
Are these coasters safe to sell at craft markets?
Yes, you are free to sell the items you create using this pattern. Always check the specific copyright terms of your yarn manufacturer if you are including their brand name on your product labels.
Why do my coasters look wavy instead of flat?
A wavy edge usually indicates that your tension is too loose or you have added too many stitches. Ensure you are counting your stitches accurately at the end of each round to match the count provided.
Is this suitable for a total beginner?
This pattern is perfect for beginners because it only requires one fundamental stitch. Practicing these circular rounds will provide a strong foundation for more complex amigurumi and 3D projects later on.

Watching your stack of squares grow is one of the most rewarding parts of this hobby. If you want to change the texture, try using a slightly fuzzy mohair blend instead of smooth cotton to create a softer, more rustic look for your finished items. Please share a photo of your progress on social media so others can see your color choices. You can also head back to the main menu on the blog to find dozens of other free designs waiting for your crochet hook.





