6 Star Coaster Free Knitting Pattern: A Complete Guide to Making Beautiful Handmade Coasters
There is something deeply satisfying about sitting down with a pair of needles and a skein of yarn and producing something both beautiful and functional. Coasters sit at that perfect intersection — small enough to finish in an evening, useful enough to give as gifts, and impressive enough to display on your coffee table with genuine pride. If you have been searching for a free knitting pattern that delivers a stunning result without overwhelming complexity, this 6 star coaster pattern is exactly what you need.
Whether you are a beginner looking for a manageable project or an experienced knitter wanting a quick and rewarding make, this guide walks you through everything — materials, gauge, abbreviations, step-by-step instructions, finishing techniques, and tips for customizing your coasters to suit any home décor. By the end, you will have a full set of gorgeous star-motif coasters ready to protect your surfaces in style.
Why Knitted Coasters Are Worth Making
Before diving into the pattern itself, it is worth taking a moment to appreciate why knitted coasters deserve a place in every knitter’s project list. Mass-produced coasters are everywhere, but handmade ones carry a warmth and character that simply cannot be replicated by a machine. The texture of knitted fabric naturally grips mugs and glasses, keeping them from sliding around on smooth surfaces. Cotton yarn, in particular, absorbs condensation beautifully, making knitted coasters genuinely practical rather than merely decorative.
A set of six makes a perfect housewarming gift, a thoughtful wedding present, or a sweet contribution to a holiday gift basket. They work up quickly, so you can produce an entire set in a weekend. They also use very little yarn, which makes them an ideal stash-busting project. If you have been hoarding small balls of cotton or scraps leftover from larger projects, this is your excuse to finally put them to good use.
The star motif in this particular pattern adds an extra layer of visual appeal. Stars are universally loved, seasonally flexible, and they translate beautifully into knitted texture through simple increases and short rows. The finished coaster has a satisfying geometric quality that looks far more complicated than it actually is to produce.
Materials and Tools
To make one coaster using this pattern, you will need the following:
Yarn: Approximately 30–40 yards of worsted weight cotton yarn (100% cotton is strongly recommended for absorbency and durability). You can use a single color for a clean, modern look, or experiment with two colors for a contrasting star and background effect. Popular choices include Paintbox Simply DK Cotton, Lion Brand 24/7 Cotton, or any equivalent worsted weight cotton you have on hand.
Needles: US size 5 (3.75mm) straight or double-pointed needles, or a set of four or five double-pointed needles if you prefer to work in the round. The pattern below is written for flat knitting with a seam, but notes are included for knitting in the round as well.
Additional tools: A tapestry needle for weaving in ends, scissors, a ruler or tape measure, and blocking pins if you want a perfectly flat finished coaster.
Optional: Stitch markers if you are new to working short rows or want to track your increase points.
Gauge
Gauge matters more than many beginners realize, even on small projects like coasters. Getting your gauge right means your coaster will come out the correct size and lie flat without curling at the edges.
For this pattern: 20 stitches and 28 rows = 4 inches (10 cm) in stockinette stitch, blocked.
If your gauge is tighter than this, go up a needle size. If it is looser, go down. Cotton yarn does not have much elasticity, so your tension tends to be very consistent once you find the right needle size for your particular yarn brand and your personal knitting style. It is always worth knitting a small swatch and washing it before you begin, since cotton can shrink slightly on its first wash.
The finished coaster measures approximately 4.5 inches (11.5 cm) across at its widest point when blocked.
Abbreviations Used in This Pattern
CO — Cast on
BO — Bind off
K — Knit
P — Purl
K2tog — Knit two stitches together (right-leaning decrease)
SSK — Slip, slip, knit (left-leaning decrease)
KFB — Knit into the front and back of a stitch (increase)
M1L — Make one left (lifted increase, leans left)
M1R — Make one right (lifted increase, leans right)
PM — Place marker
SM — Slip marker
RS — Right side
WS — Wrong side
Rep — Repeat
St(s) — Stitch(es)
Pattern Notes
This coaster is worked in six triangular sections, each representing one point of the star. The sections are worked flat and then joined, or you can work them seamlessly in the round using double-pointed needles. The star shape is created through a series of increases along the center spine of each section, then decreases to taper the points, giving the finished piece its distinctive star silhouette.
The pattern is worked in garter stitch, which means you knit every row on both the right side and the wrong side. This eliminates curling, produces a lovely ridged texture, and is significantly easier to manage than working in stockinette for a shaped piece like this. Garter stitch also means the coaster is fully reversible — both sides look equally attractive.
If you are using two colors, carry the second color loosely up the side of your work rather than cutting and rejoining yarn at every color change. This saves time and reduces the number of ends to weave in.
The Pattern: 6 Star Coaster
Section One (Make 6)
Each star point is worked as an individual triangle. You will make six identical triangles and seam them together at the end, or join them seamlessly as described in the in-the-round variation below.
Row 1 (RS): CO 3 sts. K to end. (3 sts)
Row 2 (WS): K to end. (3 sts)
Row 3 (RS): KFB, K to last st, KFB. (5 sts)
Row 4 (WS): K to end. (5 sts)
Row 5 (RS): KFB, K to last st, KFB. (7 sts)
Row 6 (WS): K to end. (7 sts)
Row 7 (RS): KFB, K to last st, KFB. (9 sts)
Row 8 (WS): K to end. (9 sts)
Row 9 (RS): KFB, K to last st, KFB. (11 sts)
Row 10 (WS): K to end. (11 sts)
Row 11 (RS): KFB, K to last st, KFB. (13 sts)
Row 12 (WS): K to end. (13 sts)
Row 13 (RS): KFB, K to last st, KFB. (15 sts)
Row 14 (WS): K to end. (15 sts)
Row 15 (RS): KFB, K to last st, KFB. (17 sts)
Row 16 (WS): K to end. (17 sts)
Now begin the decrease section to taper the star point:
Row 17 (RS): SSK, K to last 2 sts, K2tog. (15 sts)
Row 18 (WS): K to end. (15 sts)
Row 19 (RS): SSK, K to last 2 sts, K2tog. (13 sts)
Row 20 (WS): K to end. (13 sts)
Row 21 (RS): SSK, K to last 2 sts, K2tog. (11 sts)
Row 22 (WS): K to end. (11 sts)
Row 23 (RS): SSK, K to last 2 sts, K2tog. (9 sts)
Row 24 (WS): K to end. (9 sts)
Row 25 (RS): SSK, K to last 2 sts, K2tog. (7 sts)
Row 26 (WS): K to end. (7 sts)
Row 27 (RS): SSK, K to last 2 sts, K2tog. (5 sts)
Row 28 (WS): K to end. (5 sts)
Row 29 (RS): SSK, K1, K2tog. (3 sts)
Row 30 (WS): K to end. (3 sts)
Row 31 (RS): Sl1, K2tog, PSSO. (1 st)
Cut yarn, leaving a 6-inch tail. Pull tail through remaining stitch to secure.
Repeat this process until you have six completed triangles.
Assembling the Coaster
Lay your six triangles flat with the wide bases pointing inward toward a central point, like the spokes of a wheel. Each triangle should have its cast-on edge facing the center. Using a tapestry needle and a length of matching yarn, use mattress stitch to seam the left edge of each triangle to the right edge of its neighbor, working from the tip of the star outward toward the base.
Take your time with this step. Neat seaming makes an enormous difference in the finished appearance of the coaster. If you have never worked mattress stitch on garter stitch before, the technique involves picking up the bottom loop of the edge stitch on alternating sides and pulling the yarn snug after every few stitches. The resulting join is virtually invisible.
Once all six seams are complete, weave in all ends securely on the wrong side of the work. Cotton yarn can be slippery, so make sure to weave through several stitches in different directions before trimming.
Blocking Your Coaster
Blocking is the step that transforms a good knitted piece into a great one. Cotton responds beautifully to wet blocking — simply soak your coaster in cool water for about ten minutes, then gently squeeze out the excess water without wringing. Lay the coaster flat on a blocking board or a clean towel and use pins to open up the star points and encourage the piece to lie flat and even.
The star shape will become much more pronounced after blocking. The points will sharpen, the garter ridges will relax, and the overall dimensions will settle. Leave the coaster to dry completely before removing the pins — this usually takes several hours or overnight, depending on your environment.
If you want a crisper, stiffer coaster, you can use a little spray starch or a light application of blocking spray while the piece is still pinned out.
Variations and Customization Ideas
One of the best things about this pattern is how easily it can be adapted to suit different styles and preferences.
Color variations: The most dramatic customization is using two or more colors. You could knit alternate triangles in contrasting colors for a pinwheel effect, or switch colors halfway through each triangle to create an ombre or color-block star. Variegated or self-striping yarns create wonderful unpredictable results, and each coaster in your set will come out slightly different even from the same skein.
Size adjustments: To make a larger coaster or a small trivet, simply continue the increase section for more rows before beginning the decreases. Each additional increase row adds roughly one-quarter inch to the diameter of the finished piece. You can also increase the size by going up a needle size or switching to a bulkier yarn weight.
Textured variations: While garter stitch is recommended for beginners and for flatness, you can experiment with seed stitch or moss stitch within the triangles for a more heavily textured surface. The star shape holds up well regardless of which stitch pattern you use within the triangular sections.
Holiday editions: Knitted in red and white, these coasters make charming Christmas decorations. In gold or silver yarn, they work beautifully for New Year’s tables. In pastels, they are perfect for Easter or spring gatherings. The star motif is naturally festive without being so specific that it cannot be used year-round.
Monogrammed sets: Consider embroidering a simple initial in the center of each coaster using duplicate stitch or a contrasting color of embroidery thread. This takes the gift potential of these coasters to a whole new level.
Tips for Success
A few practical notes can save a lot of frustration, especially if this is your first time working a shaped piece like this.
Always check your tension as you go. Because the increases happen on every right-side row, any inconsistency in your knitting will become more noticeable as the triangle grows. If you notice your edges pulling or the piece curling, try relaxing your grip slightly and letting the yarn flow more freely through your fingers.
Use stitch markers at the edges of your increase or decrease rows if you lose count easily. Place one after the first stitch and one before the last stitch on every RS row so you always know exactly where your increases and decreases should fall.
When seaming the triangles, check the alignment frequently. It is easy for one triangle to end up slightly shifted, which throws off the star shape. Pin each section in place before sewing to ensure the whole piece will be symmetrical before you commit to any permanent seams.
If you are gifting these coasters, consider knitting them in a food-safe, dye-fast yarn. Many affordable cotton yarns are suitable, but it is worth checking the label before you begin. Machine-washable yarns make a much more practical gift than hand-wash only varieties, especially for coasters that will come into contact with hot and cold beverages regularly.
Making a Full Set
Six coasters make the standard set that most people expect when receiving coasters as a gift. Sticking with the same color throughout gives you a classic, coordinated set. Alternating two colors — say, navy and cream, or terracotta and sage — produces a beautiful mix-and-match look. Some knitters like to knit each coaster in a different color from the same palette, creating a rainbow set that is cheerful and eclectic.
You could also knit the coasters in the same yarn but vary the star point colors, keeping the base triangles in a neutral and rotating the accent triangles through several shades. This is a wonderful way to use up truly tiny amounts of leftover yarn while creating something that looks deliberately designed.
If you are making a set as a gift, consider knitting a simple rectangular holder from the same yarn — a small basket-stitch or seed stitch rectangle seamed into a box shape can hold a stacked set of six coasters neatly and makes the gift presentation feel truly polished and complete.
Caring for Your Knitted Coasters
Cotton coasters are hardy and easy to care for, which is part of what makes them such a practical gift and home accessory. Machine wash on a gentle cycle in cool water and lay flat to dry. Avoid tumble drying, which can cause cotton to shrink and distort the shape of the star.
If the coasters lose their crispness over time, a quick re-blocking session will restore them to their original shape. This takes only a few minutes and keeps them looking as good as the day you made them.
For coasters that see heavy use, rotating through a larger set of eight or more means each individual coaster gets washed less frequently and will last longer before showing wear.
A Note on Sharing Your Makes
If you knit a set of these star coasters, do share your finished makes on social media or in your favorite knitting community. Seeing how other knitters interpret the same pattern — the colors they choose, the yarn substitutions they make, the creative blocking and gift presentation ideas they come up with — is one of the great joys of the knitting community. Use relevant hashtags to connect with other makers and inspire someone else to pick up their needles and give this pattern a try.
This pattern is completely free to use for personal projects and handmade gifts. If you want to sell finished items made from this pattern, you are welcome to do so. Please do not reproduce or sell the pattern itself.
Whether you are a seasoned knitter or someone who just finished their first project and is looking for something with a little more shape and structure, the 6 star coaster pattern is a genuinely rewarding make. It teaches you increases, decreases, and seaming in a low-stakes format where
