How to Crochet a Fish Filet: A Complete Pattern Guide for Beginners and Beyond

If you’ve ever wanted to bring a touch of the sea into your home through needlework, a fish filet crochet pattern might be exactly what you’ve been looking for. Filet crochet is one of those timeless techniques that bridges the gap between functional textile art and decorative craft, and fish designs are among the most beloved motifs in the entire tradition. Whether you’re dreaming of a lacy kitchen curtain, a framed wall hanging, a table runner for a beach cottage, or even a gift for the fisherman in your life, this guide will walk you through everything you need to know to create a stunning fish filet crochet piece from start to finish.

What Is Filet Crochet?

Before diving into the pattern itself, it helps to understand what makes filet crochet unique. Unlike many crochet styles that build texture through complex stitches, filet crochet is almost entirely based on two simple elements: filled squares and open squares. Open squares, sometimes called spaces or meshes, are made with a chain and a double crochet. Filled squares, called blocks, are made with three consecutive double crochets. By arranging these two elements on a grid, you can create any image you can chart — including fish, waves, seahorses, anchors, and entire underwater scenes.

The result has a delicate, lacy quality that looks far more complicated than it actually is to make. Once you understand the basic grid logic, filet crochet becomes almost meditative, and the image emerges row by row like a photograph developing in a darkroom.

Materials You’ll Need

Getting started with a fish filet crochet project doesn’t require a significant investment. Here is what you’ll want to gather before you begin.

Thread or Yarn: Traditional filet crochet uses cotton crochet thread, typically size 10, which produces a fine, crisp fabric perfect for curtains and doilies. However, you can absolutely use worsted weight cotton yarn if you want a chunkier, more casual piece — this works beautifully for dishcloths, decorative panels, or tote bag embellishments. For a delicate wall hanging, size 10 thread in white, ecru, or a soft blue gives a classic look. For something bolder, consider a deep teal or navy cotton yarn.

Hook: Match your hook to your material. For size 10 crochet thread, a steel crochet hook in size 7 (1.65mm) is standard. For worsted weight cotton, a 4mm or 5mm hook works well. Always check your tension and adjust accordingly.

Scissors and a Yarn Needle: You’ll need these for finishing. A yarn needle with a blunt tip makes weaving in ends much easier, especially with fine thread.

Stitch Markers: Optional but helpful, especially when you’re counting squares across a wide piece.

A Printed or Digital Chart: Filet crochet is worked from a chart, which is essentially a grid where filled squares represent blocks and empty squares represent spaces. You’ll find the chart for this fish pattern in the section below.

Understanding Filet Crochet Charts

A filet crochet chart is read from the bottom right to the top left — the opposite of how we read text in English. Each row on the chart corresponds to one row of crochet. The bottom row of the chart is your first row; you work upward from there.

Each square on the chart is either filled (a block) or empty (a space/mesh). Here is how to crochet each one:

To make a space (open square): Chain 2, skip 2 stitches, double crochet into the next stitch. This creates an airy, open look.

To make a block (filled square): Double crochet into each of the next 3 stitches. This creates a solid, dense square.

At the beginning of each row, you’ll turn your work and chain either 3 or 5 depending on whether your first square is a block or a space. Chain 3 to start a block row; chain 5 (which counts as a double crochet plus a chain-2 space) to start a space row.

Once you’ve crocheted a few rows and watch the grid come to life, this logic will feel completely natural. The learning curve is genuinely gentle.

Reading Your Row Counts

For beginners, one of the trickiest parts of filet crochet is keeping track of your stitch count. Here’s a reliable way to think about it: each square in the chart requires 3 stitches (the two stitches of the square plus the shared post of the next double crochet). The very first square needs 4 stitches because it needs a full anchor on both sides. So a design that is 20 squares wide requires 3 × 20 + 1 = 61 foundation chain stitches before you add your turning chains.

Always count your foundation chain carefully and double-check before you begin your first row. Starting over is much easier than trying to fix a miscounted foundation chain fifteen rows in.

The Fish Filet Crochet Pattern

This fish pattern creates a single bold fish with a flowing tail, suitable for a beginner with just a little crochet experience. The finished motif measures approximately 6 inches wide by 4 inches tall when worked in size 10 thread with a size 7 steel hook, and approximately 10 inches wide by 7 inches tall when worked in worsted weight cotton with a 4mm hook.

The chart is 20 squares wide and 14 squares tall.

Abbreviations:
ch = chain
dc = double crochet
sp = space (open square)
bl = block (filled square)
sk = skip
st = stitch

Foundation Chain: Chain 63 (this accounts for 20 squares × 3, plus 3 for the turning chain at the beginning of Row 1).

Row 1 (Right Side): Dc in 4th ch from hook (counts as first bl), dc in next 2 ch (2 bl made). [Ch 2, sk 2 ch, dc in next ch] 3 times (3 sp). Dc in next 6 ch (2 bl). [Ch 2, sk 2 ch, dc in next ch] 4 times (4 sp). Dc in next 6 ch (2 bl). [Ch 2, sk 2 ch, dc in next ch] 3 times (3 sp). Dc in next 6 ch (2 bl). Turn.

Rather than listing every row in full text (which can become confusing to follow), the rows below are described in block-and-space shorthand. Read each row from right to left as written, since you’ll be turning your work each row.

Row 1: 3 bl, 3 sp, 2 bl, 4 sp, 2 bl, 3 sp, 3 bl
Row 2: 2 sp, 1 bl, 2 sp, 1 bl, 4 sp, 1 bl, 2 sp, 1 bl, 2 sp, 2 bl
Row 3: 2 bl, 2 sp, 2 bl, 2 sp, 1 bl, 2 sp, 2 bl, 2 sp, 2 bl
Row 4: 1 sp, 3 bl, 1 sp, 4 bl, 1 sp, 3 bl, 1 sp, 1 bl, 2 sp
Row 5: 2 sp, 1 bl, 1 sp, 6 bl, 1 sp, 1 bl, 1 sp, 2 bl, 1 sp
Row 6: 1 sp, 2 bl, 8 bl, 2 bl, 1 sp, 2 bl, 2 sp (fish body solidifies here)
Row 7: 2 sp, 14 bl, 2 sp (the main body of the fish spans the width)
Row 8: 1 sp, 2 bl, 10 bl, 2 bl, 2 sp
Row 9: 2 sp, 1 bl, 2 sp, 6 bl, 2 sp, 1 bl, 2 sp (eye and fin detail)
Row 10: 1 sp, 3 bl, 1 sp, 4 bl, 1 sp, 3 bl, 2 sp
Row 11: 2 sp, 2 bl, 2 sp, 2 bl, 2 sp, 2 bl, 2 sp, 2 bl
Row 12: 2 bl, 2 sp, 1 bl, 3 sp, 1 bl, 2 sp, 2 bl, 1 sp
Row 13: 1 sp, 3 bl, 1 sp, 1 bl, 2 sp, 1 bl, 1 sp, 3 bl, 1 sp
Row 14: 3 bl, 2 sp, 2 bl, 2 sp, 2 bl, 2 sp, 3 bl

Finishing: Fasten off and weave in ends. If blocking, wet your finished piece with cool water, gently squeeze out excess moisture, and pin it to a foam blocking board. Allow it to dry completely before removing pins. Blocking transforms the piece, opening up the spaces and evening out the blocks beautifully.

Tips for a Perfect Fish Filet Piece

There are a handful of common pitfalls in filet crochet, and knowing about them ahead of time will save you a lot of frustration.

Tension consistency matters more than perfection. Your tension doesn’t have to be perfect — it just has to be consistent. Inconsistent tension creates a wavy or uneven grid that makes the image look distorted. If your tension tends to tighten when you concentrate (a very common habit), try consciously relaxing your grip every few stitches.

Count at the end of every row. Get in the habit of counting your squares at the end of each row before you turn. This takes about ten seconds and saves you from having to rip back multiple rows later when you realize a mistake.

Mark your right side. Filet crochet can look almost identical on both sides, which is great for reversible pieces but confusing when you’re tracking your chart. Place a stitch marker or a small piece of yarn at the corner of your piece on the right side after your first row, so you always know which side is which.

Use a chart holder or highlighter. If you’re working from a printed chart, use a sticky note or ruler to track which row you’re on. Highlight each row as you complete it. Many crafters also find it helpful to work from a digital chart on a tablet, using the zoom function to see each row clearly.

Don’t skip blocking. We mentioned this already, but it’s worth repeating. Blocking a filet crochet piece is what separates a lovely, finished item from one that looks homemade in the less flattering sense of the word. It’s a simple step that makes an enormous difference.

Variations and Ways to Use Your Fish Filet Pattern

One of the joys of filet crochet is its versatility. This fish motif can be used in a surprising number of ways.

Kitchen Curtain: Work the motif multiple times in a repeated pattern across a wide foundation chain, and crochet enough rows to fill your window frame. Use a fine white or cream cotton thread for a classic cottage look. Add a simple border of double crochets and chains around the perimeter, then attach curtain rings along the top edge.

Dishcloth or Washcloth: Worked in worsted weight cotton, this fish motif produces a charming, sturdy dishcloth. Add a few border rows and you have a handmade kitchen gift that people genuinely use and love.

Framed Wall Art: Work the motif on stiff fabric stabilizer or starch your finished piece heavily after blocking. Mount it in a deep shadow box frame or stretch it over a small embroidery hoop for a piece of textile wall art.

Baby Blanket Panel: If you’re making a blanket for a fishing family’s new arrival, this fish motif worked in pastel yarn makes a sweet centerpiece panel, surrounded by simple granny squares or solid crochet rows.

Tote Bag Appliqué: Crochet the fish as a standalone motif in cotton yarn and use a yarn needle to sew it onto the front panel of a solid-colored tote bag. It makes a charming, personalized accessory.

Table Runner: Repeat the fish motif end-to-end, alternating direction so each fish faces the opposite way from the one before it. Work in a natural or white cotton yarn for a nautical table runner that works beautifully for coastal or lake house décor.

Expanding the Design: Creating an Underwater Scene

If you fall in love with this fish pattern and want to take on a larger project, consider expanding it into a full underwater scene. Filet crochet charts can be combined on a single wide grid, letting you place multiple elements — fish, seaweed, starfish, bubbles, coral — across one large piece.

To do this, you sketch or find individual filet charts for each element, then arrange them on graph paper (or in a digital charting tool like StitchFiddle, which is free and widely used in the crochet community) into a single composition. Leave spaces between elements to create the sense of water and movement. A large underwater scene panel worked in size 10 thread can take weeks but results in a heirloom-quality piece that can be framed or hung as a curtain.

Caring for Your Finished Filet Crochet Piece

Cotton filet crochet is remarkably durable and easy to care for. Most pieces can be machine washed on a gentle cycle in cold water and laid flat to dry. Avoid the dryer, which can cause cotton to shrink and distort the grid. If your piece becomes misshapen after washing, a light re-blocking will restore it to its original shape.

For pieces that are displayed rather than used (like a framed wall hanging), keep them out of direct sunlight, which can yellow white cotton over time. If your piece yellows with age, soaking it in a mild solution of oxygen-based bleach and cold water (following package directions carefully) usually restores its brightness without damaging the fibers.

Why Filet Crochet Never Goes Out of Style

There’s a reason filet crochet has been practiced for centuries and continues to attract new enthusiasts today. It is one of those crafts that manages to be both deeply satisfying to make and genuinely beautiful to live with. The grid-based logic appeals to analytical minds. The meditative rhythm of row after row appeals to those who crochet to unwind. And the results — whether a simple fish motif dishcloth or an elaborate window curtain — carry a handmade warmth that no manufactured item can replicate.

A fish filet crochet pattern in particular connects to something very human: our enduring fascination with water, with nature, and with the creatures that move through the world so differently than we do. Making one is a small act of creativity that produces something lasting. Whether you hang it in a window, gift it to a friend, or lay it across a table, a finished filet crochet fish carries with it all the focused attention and quiet joy you put into making it — and that, in a world full of disposable things, is no small matter.

Now gather your thread, pick up your hook, and let the grid begin to fill. Your fish is waiting to swim.