How to Crochet Celtic Weave Stitch

Crochet a Foundation Row

Begin your Celtic weave crochet with a multiple of 4 + 2 stitches. Start either with a chain and then work double crochet stitches or form the foundation row with foundation double crochet stitches. Whichever method you choose, check that you have the correct multiple of double crochets.

At the beginning of the first row of Celtic weave, chain 2, and double crochet in the first stitch.

Row 1: Skip Stitches and Work Front Post Treble Crochets

Skip two stitches and work a front post treble crochet in each of the next two stitches. To make a front post treble crochet, yarn over two times, just as you would for a standard treble crochet. Instead of inserting the hook at the top of the stitch, go between the double crochet "posts" from the front of your work. Finish the treble crochet as usual.

Row 1: Work Front Post Treble Crochets in the Skipped Stitches

Go back to the first skipped stitch and work a front post treble crochet, then work another in the next stitch. Working these stitches is trickier than the first two stitches because the first stitches tend to hide the stitches from the previous row. Use your fingers to feel and identify where those stitches are and where to insert your hook.

Row 1: Looking at the First Set of Stitches

Those first four front post treble crochets form the first set of Celtic weave stitches. You should see a set of two stitches crossing from the lower right toward the upper left. Repeat the previous two steps to continue the pattern along the row: Skip two stitches, front post treble crochet 2, and front post treble crochet 2 in the skipped stitches.

Row 1: A Full Row of Celtic Weave

At the end of the row, work a double crochet in the last stitch. With row 1 finished, you should see the groups of stitches leaning toward the left, with groups of stitches going behind them. It's also normal to see small gaps between the groupings.

Row 2: Work Back Post Treble Crochets

At the beginning of row 2, chain 2 and work a double crochet in the first stitch. Work a back post treble crochet in each of the next two stitches. These will be the two easy-to-spot stitches, not those hidden behind.

To make a back post treble crochet, yarn over two times, then insert the hook so it goes under the post on the back of your work. Finish the treble crochet as usual.

Row 2: Skip Stitches and Work Back Post Treble Crochets

Skip two stitches and work a back post treble crochet in each of the next two stitches. These will be the two easy-to-spot stitches, not those hidden behind.

Row 2: Work Back Post Treble Crochets in the Skipped Stitches

Go back to the first skipped stitch and work a back post treble crochet, then work another in the next stitch. These stitches are tucked away under the first set of back post treble crochets. Feel where they are first to make it easier to work the new stitches.

Row 2: Looking at the First Set of Stitches

As you work row two, it's actually the back of your work. To see how your first set of Celtic weave stitches, flip your crochet over and you can see the woven pattern starting to show up. 

Flip your work back so you can continue across the row. Repeat the previous two stitches across the row: Skip two stitches, back post treble crochet 2, then back post treble crochet 2 in the skipped stitches. Stop when three stitches remain.

Row 2: Work Back Post Treble Crochets

Work a back post treble crochet in each of the next two stitches. End with a double crochet.

Row 2: A Full Row of Celtic Weave

At the end of row two, when you look at the right side of the work, you should see the stitches looking like they are continuous, working over and under the groups of stitches.

Row 3: Skip Stitches and Work Front Post Treble Crochets

Row three follows the same pattern as row one, but instead of working into the foundation row, the stitches go through the back post treble crochets from the previous row. 

Therefore, for this row chain 2, double crochet, *skip two stitches, front post treble crochet 2, front post treble crochet 2 in the skipped stitches, repeat from * to the last stitch, double crochet.

Add Rows to Form the Celtic Weave Pattern

Repeat rows two and three to continue building the Celtic weave stitch pattern. It's amazing to watch the design appear because it looks like it's actually woven!