Celtic Knot Square

Welcome back to my Granny Square Showcase Series 🤍 Today’s square is truly something special. Square #5 is a Celtic Knot Square that features four interlocking rings at the center, creating a beautifully woven design that feels both elegant and eye-catching. It has that intricate, Celtic-inspired look — yet the process is much more approachable than it seems.

This square is a lovely step forward in the series. If you’ve been following along, you’ll notice how it builds on familiar stitches while introducing a new construction style that keeps things interesting and creative.

The magic of this square is all in the center. The four rings are created and joined in a way that gives the illusion of weaving, but I’ll guide you through it step by step in the video tutorial so you can follow along with confidence. Once the center is complete, we crochet the soft, structured border that frames the design and creates a classic square — perfect for joining with others.

Perfect For So Many Projects

This square works beautifully as a statement piece or as part of a larger project. You can use it for:

Blankets & afghans
Pillow covers
Tote bags
Table runners & placemats
Wall hangings
Cardigans & tops

Tips for Success

Go slow on the rings: The first round may feel new, but once you see how they connect, it clicks quickly
Keep your tension even: This helps the rings sit neatly together
Blocking is key: It will open up the stitches and define the shape of your square beautifully

VIDEO TUTORIAL OF CELTIC KNOT SQUARE

WRITTEN PATTERN OF CELTIC KNOT SQUARE

MATERIALS

Crochet thread: size 3 in 3 colors, I used Aunt Lydia’s Fashion 3
Hook: 2.75 mm or size needed for your yarn/thread
Notions: Scissors, tapestry needle, blocking board and pins

Abbreviations:
ch = chain
sl st = slip stitch
dc = double crochet
beg = beginning
ch-sp = chain space
hdc = half double crochet

Pattern notes:
– see the video tutorial for tips to link the rings
– 2 ch in the beginning of rounds counts as 1st dc

1st ring = with color A ch 15, sl st in 1st ch to make a ring.
Ch 2, dc in same ch, dc 2 in each next ch (30 dc), sl st in 2nd beg ch, cut off, fasten off.
2nd ring = with color B ch 15, insert the chain from back to front through the hole of the 1st ring, sl st in 1st ch.
Ch 2, dc in same ch, dc 2 in each next ch (30 dc), sl st in 2nd beg ch, cut off, fasten off.
3rd ring = with color A ch 15, insert the chain from back to front through the hole of the 2nd ring, sl st in 1st ch.
Ch 2, dc in same ch, dc 2 in each next ch (30 dc), sl st in 2nd beg ch, cut off, fasten off.
4th ring = with color B ch 15, insert the chain from back to front through the hole of the 3rd ring, then from back to front through the hole of the 1st ring, sl st in 1st ch.
Ch 2, dc in same ch, dc 2 in each next ch (30 dc), sl st in 2nd beg ch, cut off, fasten off.

BORDER

Round 1 = count 5th dc on any of the rings, join color C with sc in that dc, ch 3, skip next dc, sc in next 5 dc, ch 2, (sc in 5 dc on the next ring, ch 3, skip next dc, sc in next 5 dc) 3 times, count 4 dc from beg sc, sc in those 4 dc, sl st in beg sc.
Round 2 = ch, sc in same st, sc in ch3-sp, ch 3, (sc in same ch3-sp, sc in next 5 sc, sc in ch2-sp, sc in next 5 sc, sc in ch3-sp, ch 3) 3 times, sc in same ch3-sp, sc in next 5 sc, sc in ch2-sp, sc in next 4 sc, sl st in beg sc, cut off, fasten off.
Round 3 = join color A or B with sc in beg sc, sc in next sc, sc in ch3-sp, ch 3, (sc in same ch3-sp, sc in next 13 sc, sc in ch3-sp, ch 3) 3 times, sc in same ch3-sp, sc in next 11 sc, sl st in beg sc, cut off, fasten off.
Round 4 = join color C with sc in beg sc, sc in next 2 sc, sc in ch3-sp, ch 3, (sc in same ch3-sp, sc in next 15 sc, sc in ch3-sp, ch 3) 3 times, sc in same ch3-sp, sc in next 12 sc, sl st in beg sc.
Round 5 = ch 3 (counts as 1st hdc and ch), skip next sc, hdc in next sc, ch, skip next sc, *hdc+ch3+hdc in ch3-sp, ch+skip1+hdc across next side, ch, skip 1, repeat from*, sl st in 2nd beg ch, cut off, fasten off.

I hope you enjoy making this square as much as I did. There’s something so satisfying about watching those rings come together into such a unique and beautiful motif.

If you’re following the full series, I’d love to see your squares — feel free to share and tag me #GrannySquareShowcase or #HandmadebyRaine so I can admire your work 🤍

And if you’re just joining in, you can explore all the squares in the series here:
👉 https://handmadebyraine.com/category/granny-squares/