Granny Square Coasters: 7 Free Seasonal Designs

Every granny square coasters pattern should produce coasters that measure approximately 10-12 cm (4-5 inches) across when finished.

Introduction to Granny Square Coasters

Granny square coasters are a great first project. They’re small, they’re quick, and you end up with something you’ll actually use, a little set under your mugs that says someone made these by hand. If you can chain and double crochet, you can make these, and if you’re brand new, our crochet patterns for beginners has gentler places to start.

They’re also where a lot of people try out new techniques. No pressure: if a square goes sideways, you’ve lost twenty minutes, not twenty hours. Want to even out your double crochet or finally get comfortable reading a pattern? A coaster is a forgiving place to do it.

You’ll find five coaster patterns below, each with full written instructions, a hook size, yarn notes, and stitch counts. A couple are plain classic grannies; the rest are seasonal and a little fancier. Make one, or work your way through all five.

Materials You Will Need

First, the materials. There isn’t much to round up, but one choice matters more than the rest: the yarn.

Essential Supplies Checklist

• Crochet hook: 4.0 mm (G/6) or 5.0 mm (H/8) depending on the pattern
• Yarn: Worsted weight (Category 4) cotton or cotton-blend yarn, approximately 15-20 yards per coaster
• Scissors: Sharp crafting scissors for clean cuts
• Yarn needle: Tapestry needle with a blunt tip for weaving in ends
• Stitch markers: At least 2-3 for marking rounds (optional but helpful)
• Measuring tape: For checking finished coaster dimensions
• Blocking mat and pins: For achieving perfectly flat, professional results

One thing on yarn: use cotton, not acrylic. Cotton soaks up the condensation a cold glass leaves and shrugs off the heat from a hot mug. Acrylic can actually melt, and it barely absorbs anything. If you want specific brands, our best yarn for beginners guide has a few.

How to Use This Yarn Selection Guide?

Yarn makes or breaks a coaster. You want something absorbent, tough, and happy to go through the wash again and again. Here’s what works:

Cotton Yarn (Recommended)

Cotton is the obvious winner, absorbent, heat-resistant, machine washable. A 100% cotton worsted (Category 4) on a 4.0 mm hook gives you a coaster about 10 cm (4 inches) across.

Cotton-Blend Yarns

Cotton-acrylic blends (usually around 60/40) split the difference: most of cotton’s absorbency, plus a bit of softness and give. Good for decorative coasters that won’t get used hard every day.

T-shirt Yarn or Macramé Cord

Want something chunky? T-shirt yarn or a 3 mm macramé cord on a 6.0-8.0 mm hook makes thick, sturdy coasters around 12-15 cm (4.5-6 inches), nice for an outdoor table.

Yarn Weight Comparison Table

Yarn Weight	Hook Size (mm)	Coaster Size	Yarn per Coaster	Best For
#3 DK / Light	3.5 mm	8 cm (3.25″)	10-12 yards	Delicate tea coasters
#4 Worsted	4.0-5.0 mm	10-12 cm (4-4.75″)	15-20 yards	Standard drink coasters
#5 Bulky	5.5-6.5 mm	13-15 cm (5-6″)	20-25 yards	Mug coasters, outdoor
T-shirt yarn	8.0-10.0 mm	15-18 cm (6-7″)	15-20 yards	Statement decor pieces

Hook Size Recommendations

Hook size matters more than you’d expect on something this small. New to this? Our crochet hook sizes guide and hook size chart are worth a look. For the patterns below, I’d start with:

• 4.0 mm (G/6): Creates tight, dense fabric ideal for standard coasters with worsted weight cotton yarn
• 5.0 mm (H/8): Slightly looser stitches, good for a more relaxed, draped look
• 3.5 mm (E/4): Tight, compact stitches well suited to thin, delicate coasters with DK weight yarn

Pro tip: check your tension before you start. On a project this small, a slightly tight or loose grip shows up fast and your coasters come out uneven. If that keeps happening, this guide on why granny squares come out different sizes helps.

How Do You Make the Classic Design?

Start here. This is the plain granny square, those familiar little clusters of three double crochet. Want more ideas? Browse Ravelry’s granny square coaster collection. And if you need the fundamentals, our granny square basics and granny square tutorial walk through it stitch by stitch.

Finished Measurements

About 10 cm (4 inches) across in worsted cotton on a 4.0 mm hook.

Color Sequence

Round 1: Color A (center) | Round 2: Color B (middle ring) | Round 3: Color C (outer border)

Written Instructions

Round 1: With Color A, create a magic ring. Ch 3 (counts as first dc), 2 dc into the ring, ch 2. *3 dc, ch 2. Repeat from * two more times. Join with a sl st to the top of the beginning ch-3. (12 dc total, 4 ch-2 spaces)

Round 2: Join Color B in any ch-2 space. Ch 3 (counts as first dc), 2 dc in the same space, ch 2, 3 dc in the same space. *Ch 1, (3 dc, ch 2, 3 dc) in the next ch-2 space. Repeat from * two more times. Ch 1, join with sl st to the top of beginning ch-3. (24 dc total)

Round 3: Join Color C in any ch-2 corner space. Ch 3 (counts as first dc), 2 dc in the same space, ch 2, 3 dc in the same space. *Ch 1, 3 dc in the next ch-1 space. Ch 1, (3 dc, ch 2, 3 dc) in the next ch-2 corner space. Repeat from * two more times. Ch 1, join with sl st to the top of beginning ch-3. (36 dc total)

Border: Do not fasten off. Ch 1, single crochet evenly around the entire coaster, placing 3 sc in each corner space. Join with sl st to the first sc. Fasten off and weave in all ends. (Approximately 48 sc total)

Pattern Notes

It lies flat and takes a beating, which is really all you want from a coaster. Count your stitches at the end of each round so the set matches. If the edges start to cup, your work is curling, go up a hook size or loosen your grip a little.

Pattern 2: Solid Granny Square Coaster

The solid granny skips the open chain spaces, so you get a dense, smooth square, the look that suits modern, minimalist decor. Our solid granny square guide goes deeper on the technique.

Finished Measurements

About 9.5 cm (3.75 inches) across in worsted cotton on a 4.0 mm hook.

Written Instructions

Round 1: With Color A, make a magic ring. Ch 3 (counts as dc), 3 dc into the ring, ch 2. *4 dc, ch 2. Repeat from * two more times. Join with sl st to top of ch-3. (16 dc total)

Round 2: Ch 3 (counts as dc), 3 dc in the same st, 2 dc in the next st. *2 dc in each of the next 3 sts, (2 dc, ch 2, 2 dc) in the corner ch-2 space. Repeat from * two more times. 2 dc in the next 2 sts, join with sl st to top of ch-3. (36 dc total)

Round 3: Ch 3 (counts as dc), dc in the next 4 sts, (2 dc, ch 2, 2 dc) in the corner ch-2 space. *Dc in the next 8 sts, (2 dc, ch 2, 2 dc) in the corner ch-2 space. Repeat from * two more times. Dc in the remaining sts, join with sl st. (48 dc total)

Border Round: Ch 1, sc evenly around, placing 3 sc in each corner. Join with sl st. Fasten off.

Pro tip: no chain spaces means the solid square eats a touch more yarn, budget 20-25 yards per coaster. The payoff is a thick fabric that’s great under a hot mug.

Pattern 3: Flower Center Coaster

This one builds out from a little flower in the middle, so it doubles as decoration. The center is our easy flower, shrunk down to fit a coaster.

Finished Measurements

About 11 cm (4.25 inches) across in worsted cotton on a 4.5 mm hook.

Written Instructions

Round 1 (Flower Center): With Color A, make a magic ring. *Ch 3, sl st in ring. Repeat from * seven more times for a total of 8 petals. Fasten off Color A.

Round 2: Join Color B behind any petal. Ch 3, dc in the same space. *Ch 2, (dc, ch 2, dc) in the space behind the next petal. Repeat from * six more times. Ch 2, join with sl st to the top of the beginning ch-3. (8 dc, 8 ch-2 spaces)

Round 3: Ch 3 (counts as dc), (2 dc, ch 2, 2 dc) in the first ch-2 space. *3 dc in the next ch-2 space. (2 dc, ch 2, 2 dc) in the next ch-2 space. Repeat from * around. Join with sl st. (40 dc total)

Round 4 (Border): Ch 1, sc evenly around the entire coaster, placing 3 sc in each corner space. Join with sl st. Fasten off and weave in ends.

Pattern 4: Seasonal Holiday Coaster

This is where coasters get fun: change the colors and you’ve got a set for any season. A few combinations I keep coming back to:

Christmas Coaster Variation

Christmas: work the classic square (Pattern 1) in red, white, then green (Rounds 1-3). Drop a tiny crochet heart or bee in the center if you like. Comes out around 10 cm (4 inches) and looks right at home on a holiday table.

Easter Spring Coaster

Spring: soft pink, mint green, lavender (Rounds 1-3). The flower-center square (Pattern 3) is especially pretty in these pastels.

Halloween Coaster

Halloween: orange, black, purple. Good for fall gatherings, pair them with crochet pumpkins or a crochet basket.

Fourth of July Coaster

Fourth of July: navy, white, red. These look great on a barbecue table next to a crochet table runner.

Pattern 5: Mandala-Style Coaster

If you like circular, intricate work, the mandala-style square blends granny techniques with mandala shaping. Think of a doily, but thicker and actually usable. These are the ones guests pick up and ask about.

Finished Measurements

About 12 cm (4.75 inches) across in worsted cotton on a 4.0 mm hook.

Written Instructions

Round 1: With Color A, make a magic ring. Ch 3 (counts as dc), 11 dc into the ring. Join with sl st to top of ch-3. (12 dc)

Round 2: Ch 3 (counts as dc), dc in the next st. *Ch 2, skip 1 st, 2 dc. Repeat from * around. Ch 2, join with sl st. (16 dc, 8 ch-2 spaces)

Round 3: Join Color B. Ch 3 (counts as dc), 2 dc in the first ch-2 space. *Dc in the next 2 sts, 3 dc in the next ch-2 space. Repeat from * around. Join with sl st. (32 dc)

Round 4: Ch 3 (counts as dc), dc in the next 2 sts. *Ch 1, skip 1 st, dc in the next 3 sts. Repeat from * around. Ch 1, join with sl st. (32 dc, 8 ch-1 spaces)

Round 5: Join Color C. Ch 3 (counts as dc), 2 dc in the first ch-1 space. *Dc in the next 3 sts, 3 dc in the next ch-1 space. Repeat from * around. Join with sl st. (48 dc)

Border: Ch 1, sc evenly around. Join with sl st. Fasten off.

Blocking and Finishing Your Coasters

Blocking is what makes a coaster lie flat instead of curling at the corners, especially if your tension drifted a bit while you worked.

How to Block Crochet Coasters

1. Wet blocking (recommended): Submerge each coaster in lukewarm water with a gentle wool wash for 10-15 minutes.
2. Remove and squeeze: Gently squeeze out excess water. Do not wring or twist the fabric.
3. Pin to blocking mat: Place each coaster on a blocking mat or towel-covered surface. Use rust-proof T-pins to pin each corner and edge, shaping the coaster into a perfect square. Pin at each corner and the midpoint of each side.
4. Measure: Use a ruler to ensure each coaster measures the target size (10 cm / 4 inches for standard patterns).
5. Let dry completely: Allow 24 hours for thorough drying before removing pins.

Pro tip: for a crisper finish that survives washing, spritz commercial fabric starch on before you pin. The mandala coasters hold their shape much better this way.

Care Instructions for Crochet Coasters

Looked after properly, these last for years. Care comes down to the yarn:

Cotton Yarn Coasters

Cotton: machine wash cold on gentle, then tumble low or lay flat. Cotton actually gets stronger wet, so washing often is no problem, just reshape it while damp if needed.

Cotton-Blend Coasters

Cotton-acrylic blend: hand wash warm with mild soap and lay flat so it doesn’t stretch. Skip high heat, it’s hard on the acrylic.

T-shirt Yarn Coasters

T-shirt yarn: a damp cloth usually does it. If it really needs a wash, hand wash cool and air dry, hot water can shrink it.

Coaster Comparison

Not sure which to start with? Here’s how the five stack up:

Feature	Classic	Solid	Flower	Mandala
Difficulty Level	Beginner	Beginner+	Intermediate	Intermediate
Finished Size	10 cm	9.5 cm	11 cm	12 cm
Yarn Needed	15 yards	20 yards	18 yards	25 yards
Time per Coaster	20 min	25 min	35 min	45 min
Heat Protection	Good	Excellent	Good	Very Good
Moisture Absorbency	Good	Excellent	Good	Good
Best Use	Everyday	Hot drinks	Decorative	Statement piece
Colors per Coaster	3	2-3	2-3	3

Gift Set Ideas

A set of four to six makes a great housewarming, wedding, or holiday gift. Tie a ribbon around them, tuck in a small care card, and you’re done, a set of four runs about 60-80 yards. Round it out with a matching dishcloth or basket for a full gift set.

Selling Your Coasters

Thinking of selling? Handmade coasters usually go for $4-8 each, or $18-30 for a set of four, depending on the design and yarn. The mandala and flower-center ones fetch more because they look more involved. Our crochet tips has more on pricing handmade work.

Frequently Asked Questions

What is the best yarn for granny square coasters?

100% cotton worsted (Category 4) is your best bet, absorbent, heat-resistant, washable, and it keeps its shape. Lily Sugar’n Cream, Bernat Handicrafter, and Peaches & Crème are all cheap, come in every color, and work great here.

How many granny square coasters should I make for a set?

Four is the standard set, enough for a small household or a couple with guests over. Go to six or eight if you entertain a lot. For a gift, four is the sweet spot. Each coaster is roughly 15-25 yards, so a set of four needs only 60-100 yards total.

Can I make granny square coasters as a beginner?

Definitely, these are some of the best easy projects for beginners. The classic square (Pattern 1) uses only chains, double crochet, and slip stitches, all covered in our beginner guide. Start with one color, then branch into multi-color once it clicks.

How do I keep my granny square coasters from curling?

Curling usually comes down to a few things (more in our curling guide): use the right hook for your yarn, don’t crochet too tight, block the finished coaster, and add a single-crochet border to firm up the edges. If you’re a tight crocheter by nature, size up one hook.

How do I join multiple granny square coasters into a larger piece?

You can, join several into a hot pad, a placemat, or a little table mat. A slip stitch or whip stitch with a tapestry needle gives an invisible seam; for something prettier, the continuous join leaves a lacy border between squares.

What size should a crochet coaster be?

A drink coaster is usually 10-12 cm (4-4.75 inches), fine for most mugs and glasses. Size up to 13-15 cm (5-6 inches) for big travel mugs or iced drinks. The classic square at three rounds lands around 10 cm, which covers most things. Coming out wrong? Check the hook size chart and adjust.

That’s all five. Make one or make the lot, either way you end up with something handmade for the table. If you want more, our free crochet patterns and this 15 easy patterns roundup are good next stops. Happy crocheting.