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The Open Fan Shell Stitch is a timeless crochet pattern that combines graceful scallops with delicate eyelets to create an elegant, lightweight fabric. Featuring alternating rows of beautifully layered fan shells, this stitch produces a soft texture that is both decorative and practical. Whether you’re making a cozy baby blanket, an airy shawl, a stylish scarf, or a sophisticated home décor piece, this versatile stitch offers endless creative possibilities.
The sample shown in the photo uses alternating blue and white yarn, creating a classic nautical-inspired design that highlights the curved shell pattern. The open spaces between each fan add excellent drape while keeping the project breathable, making this stitch suitable for every season.
Why You’ll Love This Stitch
The Open Fan Shell Stitch has remained a favourite among crocheters because it is:
- Easy to memorize after only a few repeats
- Beautiful on both the front and back
- Perfect for beginners ready to learn shell stitches
- Ideal for striped and multi-colour projects
- Suitable for blankets, garments, and accessories
- Works well with cotton, acrylic, bamboo, or wool yarns
- Creates a lightweight yet textured fabric
- Excellent for baby gifts and heirloom blankets
Skill Level
Easy to Intermediate
This pattern is beginner-friendly if you already know the basic crochet stitches.
You should be familiar with:
- Chain (ch)
- Slip Stitch (sl st)
- Single Crochet (sc)
- Double Crochet (dc)
- Working into chain spaces
- Changing colours
Materials
- DK, Light Worsted, or Worsted Weight yarn
- 5.0 mm (H-8) crochet hook
- Scissors
- Yarn needle
- Stitch markers (optional)
- Measuring tape
Yarn Recommendations
This stitch looks beautiful in almost every fibre.
Acrylic
Perfect for:
- Baby blankets
- Throws
- Lap blankets
Cotton
Ideal for:
- Dishcloths
- Table runners
- Summer tops
- Market bags
Bamboo
Creates:
- Soft drape
- Elegant shawls
- Lightweight wraps
Wool
Excellent for:
- Winter scarves
- Cardigans
- Cozy blankets
Crochet Abbreviations
| Abbreviation | Meaning |
|---|---|
| ch | Chain |
| sc | Single Crochet |
| dc | Double Crochet |
| sl st | Slip Stitch |
| sp | Space |
| rep | Repeat |
| st | Stitch |
| sk | Skip |
| RS | Right Side |
| WS | Wrong Side |
Finished Appearance
The fabric features:
- Rounded fan shells
- Decorative eyelets
- Soft scalloped texture
- Excellent drape
- Elegant colour transitions
- Reversible design
Stitch Multiple
This stitch uses:
Multiple of 8 + 3
Examples include:
- 27 chains
- 35 chains
- 43 chains
- 51 chains
- 59 chains
- 67 chains
You can easily adjust the width by adding or subtracting multiples of eight.
Foundation Chain
Chain your desired length using a multiple of 8 + 3.
Example:
Chain 131 for a baby blanket.
Row 1
Skip the first three chains.
Work 8 dc into the next chain.
Skip the next three chains.
Work 1 sc into the next chain.
Skip the next three chains.
Work 8 dc into the next chain.
Repeat this sequence across the row.
Finish with a single crochet in the final stitch if needed.
Turn your work.
Row 2
Join the second colour.
Chain 1.
Single crochet into the centre stitch of the first shell.
Chain 3.
Work 8 dc into the chain space between the shells.
Chain 3.
Single crochet into the centre of the next shell.
Continue repeating:
- ch 3
- 8 dc in chain space
- ch 3
- sc in shell centre
Turn.
Row 3
Chain 3.
Work 8 dc into each chain-3 space.
Single crochet into the middle stitch of every shell.
Chain 3.
Repeat across.
Turn.
Pattern Repeat
Repeat Rows 2 and 3 until your project reaches the desired length.
Alternate colours every row or every two rows for a striking striped effect.
Colour Changes
The sample uses alternating rows:
Row 1 – Blue
Row 2 – White
Row 3 – Blue
Row 4 – White
Continue alternating throughout the project.
For fewer ends to weave in, carry the unused colour up the side if changing every row.
Border Ideas
Once your blanket reaches the desired size, finish it with one of these borders:
Simple Single Crochet Border
Work one round of single crochet evenly around all edges.
Crab Stitch Border
Creates a twisted rope-like finish.
Picot Border
Adds a delicate decorative edge.
Shell Border
Complements the fan stitch beautifully.
Reverse Shell Border
Provides an elegant vintage appearance.
Adjusting Blanket Sizes
Lovey
Approximately 18 × 18 inches
Foundation: 67 chains
Baby Blanket
Approximately 30 × 36 inches
Foundation: 131 chains
Lap Blanket
Approximately 40 × 50 inches
Foundation: 171 chains
Throw Blanket
Approximately 50 × 60 inches
Foundation: 211 chains
Always make a gauge swatch first, as yarn and tension affect the finished size.
Helpful Tips
- Count each shell carefully to ensure every fan has eight double crochets.
- Keep chain-3 spaces relaxed to prevent puckering.
- Use stitch markers at the beginning and end of rows to maintain straight edges.
- Block your finished project to open the lace and define the scallops.
- Weave in colour-change ends securely for durability.
Common Mistakes
Uneven Shells
Usually caused by missing or adding double crochets.
Tight Chain Spaces
Loose chain spaces help the shells spread evenly.
Crooked Edges
Always begin and end each row consistently.
Wavy Blanket
Check your stitch count every few rows.
Best Colour Combinations
- Blue & White
- Navy & Cream
- Blush Pink & Ivory
- Lavender & White
- Sage Green & Cream
- Mint & Grey
- Mustard & Ivory
- Dusty Rose & Beige
- Aqua & Sand
- Coral & White
- Rainbow Gradient
- Ombre Blue
- Grey & Yellow
- Burgundy & Cream
- Chocolate & Ivory
Best Projects for This Stitch
The Open Fan Shell Stitch is incredibly versatile and works beautifully for:
- Baby blankets
- Receiving blankets
- Throw blankets
- Lapghans
- Bed runners
- Shawls
- Prayer shawls
- Scarves
- Cowls
- Table runners
- Cushion covers
- Decorative pillows
- Beach wraps
- Summer cardigans
- Ponchos
- Lightweight sweaters
- Tote bags
- Baby cocoons
- Nursery décor
- Wall hangings
Frequently Asked Questions
Is this stitch suitable for beginners?
Yes. Once you are comfortable with chain, single crochet, and double crochet stitches, the repeating pattern becomes easy to memorise.
Does this stitch use a lot of yarn?
The fan shells use more yarn than simple stitches, but the open spaces help reduce the total amount needed compared to dense textured patterns.
Can I use more than two colours?
Absolutely. This stitch looks stunning with three-colour repeats, rainbow gradients, ombré cakes, or self-striping yarn.
Does the stitch curl?
No. When worked with the correct hook size and consistent tension, the fabric lies flat and requires minimal blocking.
Is blocking necessary?
Blocking is optional but highly recommended. It opens the eyelets, smooths the scallops, and gives the finished project a polished, professional appearance.
Final Thoughts
The Open Fan Shell Crochet Stitch is an elegant, timeless pattern that combines classic shell motifs with airy lace-like spaces to create a fabric that is both beautiful and functional. Its rhythmic repeat makes it enjoyable to crochet, while the finished texture offers excellent drape and visual appeal. Whether you choose soft pastels for a nursery blanket, bold stripes for a modern throw, or neutral tones for sophisticated home décor, this stitch adapts effortlessly to your creative vision. With its graceful scalloped rows, gentle texture, and endless colour possibilities, the Open Fan Shell Stitch is sure to become one of your favourite patterns for blankets, garments, accessories, and heirloom-quality crochet projects.
