This stunning crochet dress brings together classic fan shell stitches and elegant construction for a truly show-stopping garment. The design features a fitted bodice, puffed short sleeves, a calf-length flared skirt, and a tied waist belt that cinches everything beautifully at the waist.
Get the Ad-Free PDF Pattern
Scroll down for the full pattern, or get the ad-free printable PDF from the shop.
Get the Printable PDF →
What makes this pattern special is the strongly raised overlapping fan shells that create incredible texture and visual depth. The scalloped hem adds a romantic finishing touch that catches the light as you move. Whether you’re dressing up for a special occasion or looking for a statement piece for your handmade wardrobe, this dress delivers.
This is an intermediate to advanced level project that works flat in panels, then joins at the waist. The bodice and skirt are made separately, sleeves are worked as rectangles, and everything comes together with careful assembly. It’s a substantial project, but the results are absolutely worth the effort.
About This Pattern
This Royal Blue Fan Shell Dress pattern creates a finished bust of approximately 100 cm, designed for a body bust of 90 to 94 cm with 6 to 10 cm of ease. The untied waist measures 100 cm and cinches with the belt to 80 to 90 cm. The skirt length is 76 cm, bodice shoulder to waist is 40 cm, and sleeve length is 22 cm.
Important note: This is an AI-assisted draft pattern that has been reviewed for stitch counts and layout, but no physical sample or wear test has been completed. The generated image is a styling illustration, and exact texture, shaping, and fit may differ from what you create.
Materials You’ll Need
Gather these supplies before you begin:
Yarn:
- Smooth sport-weight cotton, approximately 300 m per 100 g
- Main color (royal blue): 1066 g (3198 m)
- Accent color (royal blue): 120 g (360 m) total
Hooks:
- 3.5 mm hook for main fabric
- 3.0 mm hook for firm borders and belt
Notions:
- Tapestry needle
- Removable stitch markers
- Tape measure
- Scissors
- Blocking mats and rust-resistant pins
- Sewing needle and matching thread
- 40 cm dress zipper
- 1 m of 10 mm cotton tape for waist stabilization
- Optional: 6 mm sew-on pearls for decoration
Additional requirement: A separate opaque slip is needed for wearing this openwork garment.
Gauge
Getting gauge right is essential for this dress to fit properly.
Blocked main-stitch gauge: 3 fan repeats and 14 rows = 10 x 10 cm
One repeat is approximately 3.33 cm wide. Measure away from edges. This gauge governs every count in the pattern. Change your hook or yarn if you cannot achieve it without distorting the fabric.
For your swatch: Use the stitch recipe in Section 3 of the pattern with N = 6 and work at least 28 rows. Wet-block your swatch, dry flat for 24 hours, then hang for 12 hours to check for cotton growth. Measure the central 10 cm and recheck length after hanging. Keep your swatch for washing and colorfastness tests.
Border gauge: 20 single crochet (sc) and 24 sc rows = 10 cm
Abbreviations and Special Stitches
Here are all the abbreviations used throughout this pattern:
- ch = chain
- sc = single crochet (insert hook, yarn over, pull through, yarn over, pull through both loops)
- hdc = half double crochet
- dc = double crochet (yarn over, insert hook, pull through, yarn over, pull through 2 loops, yarn over, pull through remaining 2 loops)
- tr = treble crochet
- sl st = slip stitch
- st(s) = stitch(es)
- sp = space
- RS/WS = right side/wrong side
- BLO = back loop only
- rep = repeat
- N = number of horizontal motif repeats in a piece
The Fan Stitch: A fan consists of 5 double crochet (dc) worked into one stitch or chain-5 (ch-5) arch. The fabric alternates between a fan row and a supporting arch row. The beginning ch 1 never counts as a stitch.
Understanding the Stitch Pattern
This accessible stacked-fan interpretation creates beautiful texture. Here’s how the basic pattern works:
Foundation: Chain 6N+2 (where N is your number of repeats).
Row 1: Sc in second ch from hook; [skip 2 ch, 5 dc in next ch, skip 2 ch, sc in next ch] N times. Count: N fans and N+1 sc; 6N+1 stitches total.
Row 2: Ch 1, turn, sc in first sc; [ch 5, skip entire fan, sc in next sc] N times. Count: N arches and N+1 sc.
Row 3: Ch 1, turn, sc in first sc; [5 dc in next ch-5 arch, sc in next sc] N times. Count: N fans and N+1 sc; 6N+1 stitches.
Repeat Rows 2 and 3 throughout the pattern.
Pattern Notes Before You Begin
Read through all instructions before starting. Here are key points to keep in mind:
- Work flat and turn after every row
- Mark Row 1 as your right side (RS)
- Count stitches at every row end
- Check measurements after each 10 cm of work
- Fasten off with 20 cm tails for seaming
- Seams consume only the edge loops
- Do not remove a motif just to force a measurement. Correct gauge first instead
For neckline shoulders, restart yarn at a complete motif boundary. Do not carry yarn across the neck gap. The neckline shaping is deliberately stepped and smoothed with the border later.
Color placement: Main pieces use royal blue throughout. Use the accent color on the last two skirt rows and borders unless main and accent are identical. Use the accent for the belt where specified.
Construction Overview
The dress comes together in this order:
- Make and block both bodice panels, then work neckline shoulders
- Make six skirt panels
- Make two sleeve rectangles
- Join shoulders and sleeves
- Close side seams around the zipper opening
- Join skirt panels
- Distribute skirt fullness evenly into the bodice waist
- Add belt, borders, and decoration last
Back Bodice Instructions
With main color and 3.5 mm hook, start the foundation with N = 15. Work upward from waist.
Row 1: Work foundation row. Count: 15 fan repeats.
Rows 2 through 52: Work the next plain recipe row. Count: 15 fan repeats each row.
Mark the central 5 repeats as the back neck opening. Work the outer 5 repeats at each side separately, restarting at the outer edge or neck edge as required by row direction. Leave the marked center unworked.
Rows 53 through 56, each shoulder: Continue the recipe over the outer 5 repeats only. Count: 5 fan repeats per shoulder.
Front Bodice Instructions
Begin as back with N = 15. The front is worked as one panel until neckline shaping. Any decorative button placket is applied later and does not open.
Rows 1 through 46: Work the foundation row, then continue with plain recipe rows. Count: 15 fan repeats each row.
Leave center 1 repeat unworked and work each side separately. On a reduction row, leave one full repeat at the neck edge unworked and restart at the new motif boundary. Border stitches smooth these shallow steps.
Rows 47 through 49, each shoulder: Continue next recipe row over this shoulder only. Count: 7 fan repeats per shoulder.
Row 50, each shoulder: Omit one complete neck-edge repeat, rejoin yarn and work remaining motifs. Count: 6 fan repeats per shoulder.
Row 51, each shoulder: Continue next recipe row. Count: 6 fan repeats per shoulder.
Row 52, each shoulder: Omit one complete neck-edge repeat, rejoin yarn and work remaining motifs. Count: 5 fan repeats per shoulder.
Rows 53 through 56, each shoulder: Continue next recipe row. Count: 5 fan repeats per shoulder.
Skirt Panels (Make Six)
Work from waist downward. Start with N = 9. Each rectangular panel is 30 cm wide. You’ll gather the combined 180 cm top edge to fit the 100 cm bodice waist. The resulting fullness creates the skirt’s lovely flared shape.
Row 1: Work foundation row. Count: 9 fan repeats.
Rows 2 through 107: Work next plain recipe row, following the color plan. Count: 9 fan repeats each row.
Checkpoint: Block all six panels to 76 cm length, within one row of tolerance. Width should be 30 cm. End fan fabric on a fan row.
Sleeves (Make Two)
Use main color, 3.5 mm hook, and N = 12. Work from shoulder edge to cuff. Both sleeve rectangles start 40 cm wide. For a puff sleeve, gather the upper edge slightly while attaching. For a bell sleeve, leave the lower edge loose and add the scalloped border.
Sleeve Row 1: Work foundation row. Count: 12 fan repeats.
Sleeve Rows 2 through 31: Continue the plain recipe row. Count: 12 fan repeats each row.
Checkpoint: Each rectangle should be 40 cm wide and approximately 22 cm long before border. Ensure both sleeves match.
Waist Tie Belt
Belt Row 1: With 3.0 mm hook and belt color, ch 8; sc in second chain and next 6 chains. Count: 7 sc.
Belt Row 2 and every following row: Ch 1, turn, sc BLO in each stitch. Count: 7 sc per row.
Continue until the belt measures 160 cm. Record your row total because row gauge varies with hook and yarn.
Checkpoint: Belt should measure 160 x approximately 3.5 cm. Do not stretch while measuring. Make it longer only if needed to tie comfortably.
Assembly Instructions
You’ll need: Royal blue yarn tails, tapestry needle, 3.5 mm hook for optional slip-stitch seams, zipper, sewing needle, thread, and cotton waist tape.
Join 1, Shoulders: Mattress-stitch corresponding outer shoulder edges, aligning 5 complete motifs on each seam. Count: 2 shoulder seams, 5 motifs each.
Join 2, Sleeves: Mark 20 cm down each side of front and back. Match sleeve midpoint to shoulder seam, then sew its 40 cm upper edge around this opening. For puff styling, ease 2 cm at the sleeve midpoint. Count: 2 sleeves attached.
Join 3, Sides: Sew from waist to armhole on right side. On left, leave the bodice portion of the 40 cm zipper opening and continue that opening into the skirt below waist as needed. Close sleeve underarms. Count: 2 side seams, 1 zipper opening.
Join 4, Skirt: Align equal row ends and mattress-stitch six panels into a ring, retaining the left-side zipper gap. Count: 6 panel joins, including the partial zipper seam.
Join 5, Waist: Quarter-mark both bodice and skirt. Run two gathering threads through skirt foundation loops and draw to 100 cm, matching quarter marks. Sew to bodice waist. Sew stabilizing cotton tape inside the waist without stretching. Count: 1 continuous 100 cm waist join.
Join 6, Closure: Hand-baste then backstitch zipper tapes to the inside of the left opening. Keep teeth clear of crochet loops. Secure top and lower stops. Count: 1 working zipper, 40 cm opening closed.
Assembly checkpoint: Shoulders should be level, waist 100 cm before belt, armholes approximately 40 cm perimeter, and zipper opens without catching. Try over the intended slip before trimming. Confirm adequate sitting and walking room.
Edgings and Details
Neck Round 1: Join at back neck and sc evenly around, approximately 2 sc per dc-row end and 1 sc per stitch. Adjust at steps to lie flat. At square inside corners, work sc2tog across the corner. Join with sl st. Count and record your total (E).
Neck Round 2: Ch 1, sc in each sc, join. For round and V necks, work sc2tog at any remaining inner step. Record the decrease total (D). Count: E minus D sc.
Hem Round 1: Sc evenly along lower edge without drawing it in. For fans, work one sc in each stitch. Do not count seam loops twice. Count and record your total (H).
Hem Round 2: Starting at any sc, [skip 2 sc, 5 dc in next sc, skip 2 sc, sl st in next sc] around. Work residual 0 to 5 sc as sl sts beside seam. Count: floor(H/6) scallops.
Armhole/Cuff Round 1: Sc evenly around each opening, using about 2 sc per row end. Join. Count and record (C) for each opening separately.
Armhole/Cuff Round 2: Sc in each sc for a plain edge, or use Hem Round 2 for a scalloped sleeve.
Edging checkpoint: Every border should lie flat with no puckering. Both sleeve openings must match. Belt ties easily. Record E, D, H, and C counts for future reference.
Finishing Your Dress
Pass 1: Weave each end through at least 5 cm of solid stitches, reverse direction twice, and trim only after the first wash. Count: 0 unsecured yarn tails.
Pass 2: Soak according to yarn label, lift supported, press between towels, and lay flat to finished measurements. Shape each scallop gently. Count: 1 dress blocked, 2 sleeves equal.
Pass 3: After fully dry, hang for 12 hours, remeasure length, and check zipper, belt, and decoration. Count: 1 final fit check, 0 loose buttons or beads.
Final measurements: Bust approximately 100 cm, bodice 40 cm, skirt 76 cm plus border, sleeves 22 cm plus any extra scallop depth. Cotton can grow in wear, so shorten only after the hanging check. Store folded, not suspended from shoulders.
Care and Safety Notes
Follow the yarn care label. For cotton samples, cool gentle hand washing and flat drying are a conservative starting point. Test colors first. Support the full wet garment and avoid wringing. Remove detachable trim before washing. Openwork catches easily on jewelry and furniture.
This is an adult garment. Use an opaque slip for coverage. Secure any pearls or buttons and check regularly. Small detached parts are a choking hazard around children and pets. Keep long belt ends clear of moving equipment and flames. Check that the hem does not trip the wearer.
Tips for Success
Before you start: Compare your bust, upper arm, armhole, and shoulder measurements to a well-fitting garment. This pattern provides one measured size, not a graded multi-size pattern. Larger size adjustments require a new swatch and recalculated repeats.
While working: Count at every row end. Check measurements after each 10 cm. Do not remove a motif merely to force a measurement. Correct gauge first instead.
For the belt: Do not tighten enough to distort the openwork. The belt controls waist fit, so make sure it ties comfortably without pulling the fabric out of shape.
This Royal Blue Fan Shell Dress is truly a labor of love. The fan shell stitch creates such beautiful texture, and the construction, while detailed, results in a garment you’ll treasure. Take your time with each section, block carefully, and you’ll have a stunning handmade dress to show for your efforts.
If you make this dress, I’d absolutely love to see it! Share your finished project on Instagram or Facebook. Save this pattern to your Pinterest boards so you can find it when you’re ready to start, and leave a comment below if you give it a try. Happy crocheting!
Want a Quick & Easy Printable Version?
Get a clean, beautifully formatted PDF of this pattern — easy to follow step by step, ready to print or save on any device. No scrolling, no distractions, just the pattern.
Get the Printable PDF →