Want to Learn Filet Crochet? Try this Free Blanket Pattern

If you’ve ever scrolled through crochet galleries online and paused at those gorgeous lace-like pieces with intricate geometric shapes, delicate flower motifs, or charming animal silhouettes built from tiny open and filled squares, you were almost certainly looking at filet crochet. It has a timeless, almost architectural quality that sets it apart from other crochet styles, and yet the technique itself is surprisingly approachable — even for crafters who consider themselves beginners.

This post is going to walk you through everything you need to know to get started with filet crochet, and then we’ll dive into a free blanket pattern you can use to practice and build your skills. By the time you’ve finished your first project, you’ll understand why so many crocheters fall completely in love with this craft and never look back.

What Is Filet Crochet?

Filet crochet is a technique that uses a combination of filled squares and open squares (sometimes called spaces and blocks) arranged on a grid to create images and patterns. The open squares are typically formed with a chain and a double crochet, while the filled squares are formed with three double crochets worked back to back. By plotting these two elements out on graph paper — or following a chart designed by someone else — you can create virtually any image you can imagine.

The word “filet” comes from the French word for net, which makes sense when you look at the open spaces in the fabric. Traditionally, filet crochet was used to make curtains, tablecloths, pillowcases, and decorative edgings. You can still find antique pieces in thrift stores and estate sales, often done in fine white or ecru thread on tiny steel hooks. These days, crafters have expanded the tradition dramatically, using everything from lightweight yarn to chunky cotton, and making everything from baby blankets to wall hangings to personalized gifts.

What makes filet crochet ideal for beginners is that it only requires you to master two basic stitches: the chain and the double crochet. If you can do those two things, you have everything you need to work a filet crochet pattern. The rest is just about reading the chart and staying consistent.

Understanding the Grid

Before you pick up your hook, it helps to understand how filet crochet charts work, because reading the chart is really the heart of the technique.

A filet crochet chart looks like a grid on graph paper. Each square on the grid represents either an open mesh (a space) or a filled block. Most patterns use a darkened or filled-in square to represent a block and an empty square to represent a space. Some patterns use X marks inside the squares, or they’ll include a key that explains the symbols. Always check the key before you begin.

When you crochet, you work row by row, typically from bottom to top (or in the direction your pattern specifies). On odd-numbered rows, you generally work from right to left, and on even-numbered rows, you work from left to right — though this depends on whether you’re working flat or in the round. Most blankets are worked flat, so you’ll be turning your work at the end of each row.

Each open space in filet crochet is made by working one double crochet, chaining two, and then skipping two stitches (or the chain-two space from the previous row) before working another double crochet. Each filled block is made by working four double crochets in a row, or by replacing the chain-two space with two double crochets, giving you three double crochets plus the one that anchors the previous block.

This can sound a little confusing in the abstract, but once you sit down with your hook and work through even one row, it clicks into place almost immediately. The visual logic of the grid translates beautifully to the physical work in your hands.

Materials You’ll Need

For this beginner-friendly blanket pattern, you don’t need anything fancy. Here’s what to gather before you start.

For yarn, choose a smooth, light-colored worsted weight yarn. Lighter colors make it much easier to see your stitches, which is especially helpful when you’re learning. A cream, white, pale yellow, or light gray all work beautifully for a first filet project. You’ll need approximately 800 to 1,000 yards depending on your gauge and the finished size you’re going for. Cotton or a cotton blend is a wonderful choice for blankets because it’s washable, holds its shape well, and shows the open mesh beautifully. A standard acrylic worsted weight works perfectly too, especially if you want something soft and cozy.

For your hook, a 5mm (size H/8) hook is a reliable choice for worsted weight yarn in filet crochet. Filet fabric is generally worked a little more loosely than standard crochet so the mesh stays open and the pattern reads clearly. If you find your fabric is too stiff, go up a hook size. If it’s too floppy or the squares aren’t holding their shape, go down a size.

You’ll also want a tapestry needle for weaving in ends, scissors, and stitch markers to help you keep track of your place in the pattern. A printed or digital version of the chart is helpful so you can mark off rows as you complete them. Some crafters use a sticky note or ruler held along the chart to keep from losing their place.

Foundation Chain and Setup

One of the trickier parts of filet crochet for newcomers is calculating the foundation chain. Each block or space is made up of three stitches, with one extra stitch at each edge. So the math goes like this: multiply the number of squares across your chart by three, then add one extra stitch for the turning chain.

For this blanket pattern, the chart is 30 squares wide. So your foundation chain would be 30 times 3, which is 90, plus one turning chain equals 91 chains. You’ll then add your turning chain for the first row, which in most filet patterns is chain five (this counts as one double crochet plus one chain-two space for the first open mesh).

Work a foundation chain of 91, then chain 5 more. Turn your work and begin Row 1 in the 9th chain from your hook (this accounts for the turning chain and the first open mesh). This is one of those setups that can feel awkward the first time, but after your first few rows, it becomes second nature.

The Free Blanket Pattern

This pattern creates a baby-blanket-sized piece that’s approximately 30 by 36 inches when worked in worsted weight yarn at the gauge described. It features a simple geometric diamond and lattice design that’s perfect for learning the rhythm of filet crochet without getting overwhelmed by a complicated motif.

Materials:
Approximately 850 yards of worsted weight yarn in your preferred color, a 5mm crochet hook, scissors, a tapestry needle, and stitch markers.

Gauge:
3 blocks and 3 rows equal approximately 3 inches. Gauge isn’t critical for this project, but it will affect your finished size.

Abbreviations:
ch = chain, dc = double crochet, sp = space (open mesh), bl = block (filled mesh), t-ch = turning chain.

Foundation:
Chain 91, then chain 5 more (96 chains total). Turn.

Row 1 (Right Side):
Dc in 9th ch from hook (this forms your first open space), [ch 2, skip 2 ch, dc in next ch] repeat across to end. You should have 30 spaces across. Chain 5, turn.

Rows 2 through 4:
Work all spaces across (no filled blocks). These rows form the bottom border of your blanket.

From Row 5 onward, you’ll begin introducing blocks following the chart below. Because this is a text pattern rather than a visual grid, the rows are written out stitch by stitch.

Reading the Row Instructions:
In the instructions below, “sp” means work one open space (ch 2, skip 2, dc in next dc) and “bl” means work one filled block (dc in each of next 2 stitches, dc in next dc — or if working into a space, work 2 dc in the space, then dc in the next dc).

Row 5: 3 sp, 1 bl, 5 sp, 1 bl, 10 sp, 1 bl, 5 sp, 1 bl, 3 sp. Ch 5, turn.

Row 6: 3 sp, 1 bl, 4 sp, 3 bl, 8 sp, 3 bl, 4 sp, 1 bl, 3 sp. Ch 5, turn.

Row 7: 3 sp, 1 bl, 3 sp, 2 bl, 1 sp, 2 bl, 6 sp, 2 bl, 1 sp, 2 bl, 3 sp, 1 bl, 3 sp. Ch 5, turn.

Row 8: 3 sp, 1 bl, 2 sp, 2 bl, 3 sp, 2 bl, 4 sp, 2 bl, 3 sp, 2 bl, 2 sp, 1 bl, 3 sp. Ch 5, turn.

Row 9: 3 sp, 1 bl, 1 sp, 2 bl, 5 sp, 2 bl, 2 sp, 2 bl, 5 sp, 2 bl, 1 sp, 1 bl, 3 sp. Ch 5, turn.

Row 10: 3 sp, 3 bl, 7 sp, 4 bl, 7 sp, 3 bl, 3 sp. Ch 5, turn.

Row 11: 3 sp, 1 bl, 1 sp, 2 bl, 5 sp, 2 bl, 2 sp, 2 bl, 5 sp, 2 bl, 1 sp, 1 bl, 3 sp. Ch 5, turn.

Row 12: Repeat Row 8. Ch 5, turn.

Row 13: Repeat Row 7. Ch 5, turn.

Row 14: Repeat Row 6. Ch 5, turn.

Row 15: Repeat Row 5. Ch 5, turn.

Rows 16 through 18: Work all spaces across (plain mesh rows). Ch 5, turn.

Repeat Rows 5 through 18 three more times total, then work Rows 5 through 15 once more. End with three rows of all spaces to mirror the bottom border.

Fasten off and weave in all ends.

Border:
Work one round of single crochet around the entire blanket, working 1 sc into each stitch along the top and bottom edges and 2 sc per row end along the side edges. Work 3 sc into each corner. Join with a slip stitch and fasten off.

Tips for Success

Filet crochet rewards consistency above all else. Try to maintain an even tension throughout your work, which mostly comes with practice and relaxing your grip. If you notice your mesh squares looking uneven — some too large, some too small — stop and check whether you’re consistently skipping the right number of stitches.

Counting is your best friend in filet crochet. At the end of every row, count your spaces and blocks to make sure the total matches what you expected. Catching a mistake at the end of a row is so much easier than discovering it five rows later. Many experienced filet crocheters count out loud as they work, or use a row counter app on their phone.

When you’re turning at the end of a row, the turning chain of five counts as one double crochet plus one chain-two space. This means when you begin the next row, you treat that turning chain as if it were a regular open space. Work your last double crochet of the row into the third chain of the turning chain from the previous row. This is another one of those things that sounds complicated until you actually do it a few times.

It also helps to place a stitch marker in the very last stitch at the beginning of each row, so you always know exactly where to work your last stitch when you come back around. This prevents the edges from gradually pulling in or spreading out, which is a common issue for people new to working filet flat.

How to Read a Filet Crochet Chart

If you want to go beyond written-out row instructions and start exploring the huge world of charted filet crochet patterns, learning to read a chart opens up an enormous library of designs. The good news is that filet charts are among the most intuitive crochet charts out there.

Start at the bottom right corner of the chart (assuming you’re working flat and right-handed). Work across to the left for your first row. At the end of the row, move up one row on the chart and work from left to right. Continue alternating directions with each row, always starting a new row at the edge where you just ended the previous one.

Mark off each row as you complete it. Use a ruler or sticky note to cover the rows you haven’t worked yet so you’re only looking at one row at a time. Some people prefer to cover the rows below and work from the top down so the completed section is covered and only upcoming rows are visible — find whichever approach works for you.

When you encounter a filled block on the chart after a row of open spaces, you replace the chain-two of the open mesh with two double crochets. So instead of (dc, ch 2, skip 2, dc), you work (dc, dc, dc, dc) — four double crochets in a row, which fills in that square solidly.

What to Do When You Make a Mistake

Everyone makes mistakes in filet crochet, especially when first learning. The most common is working one too many or one too few spaces or blocks in a row, which shifts your pattern and creates that disheartening moment where nothing lines up anymore.

If you catch it immediately, just frog (rip out) back to the mistake and work it correctly. If you don’t notice until several rows later and the error is minor — say, one block placed one square off — you have options. You can frog all the way back, which is the most satisfying in terms of a clean finished product but requires patience. Or, if the error is small and unlikely to be noticed on a cozy blanket, you can choose to continue and simply do your best to keep the rest of the pattern consistent from that point forward.

Filet crochet for a blanket is far more forgiving than filet crochet for something like a doily or a decorative panel that will be displayed prominently. Give yourself permission to be imperfect while you’re learning.

Finishing and Blocking

Once your blanket is complete and your ends are woven in, blocking will make a dramatic difference in the final look of your work. Blocking opens up the mesh, evens out any inconsistencies in your tension, and gives the whole piece a professional, polished finish.

For cotton yarn, wet blocking works beautifully. Soak the blanket in cool water for about twenty minutes, gently squeeze out the excess water without wringing, then lay it flat on a blocking mat or a clean towel on the floor. Use rust-proof pins to stretch the blanket to your desired dimensions, making sure the corners are square and the edges are straight. Let it dry completely before removing the pins.

For acrylic yarn, steam blocking is an option, though you should hold the steam iron several inches above the fabric and never press down directly. Many acrylic yarns respond well to gentle steam, which relaxes the fibers and helps the mesh open up. Always check the care label on your yarn before blocking.

Where to Go From Here

Once you’ve completed this blanket, you’ll have built a solid foundation in filet crochet that opens the door to an almost limitless variety of projects. Filet crochet can be used to create personalized name signs, holiday decorations, portrait-style motifs of animals or flowers, geometric mandalas, and so much more.

Look for filet crochet charts designed for cross-stitch, since they work just as well for filet crochet — this instantly multiplies the patterns available to you. Many cross-stitch designs translate perfectly to the filet grid, from simple seasonal motifs to elaborate scenic pictures.

Consider experimenting with finer yarn and a smaller hook as your skills grow. A cotton thread worked on a steel hook creates a delicate, heirloom-quality fabric that’s breathtaking for table runners, curtain panels, or framed wall art. Working small in thread can be a nice meditative change of pace from larger yarn projects.

You might also explore designing your own filet patterns. All you need is graph paper (or a free online graph paper generator), a pencil, and an idea. Sketch out your design on the grid, fill in the squares you want as blocks, leave the ones you want as spaces, and you have a custom chart to follow. This is where filet crochet truly becomes an art form that’s entirely your own.

Final Thoughts

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