Cluster block baby sweater, this cute free crochet pattern can be made in 4 sizes just by changing hooks.
The design is written for beginner and intermediate crocheters using the cluster block stitch.
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I have used light worsted DK #3 yarn in two colours for the crochet cluster block baby sweater pattern.
See more of my crochet baby sweaters, popcorn set and hooded sweater.
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The written instructions and pictures for this free crochet cluster block baby sweater pattern are the sole property of crochetncreate. The pattern is copyright protected © 2026. You are welcome to sell your finished items made from this pattern. My photos are copyright protected and are not to be used to sell your items.
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Crochet Cluster Block Baby Sweater UK
Pattern Number CNC566
Skill Level: Intermediate
Abbreviations UK
WS. Wrong Side
RS. Right Side
ch. Chain
dc. Double Crochet
tr. Treble Crochet
rpt. Repeat
yrh. Yarn Round Hook
BLO. Back Loop Only
tr3tog. Treble Three Together
Leaving last loop of each tr on hook, work 3tr into next stitch, yrh, pull through all loops.
Base of ch. Work into first stitch
3ch counts as first tr
Sample size to fit approx: 16 Inch chest 0-3 Month Baby
Length from shoulder approx: 9.5 inches
Under arm sleeve length approx: 5 Inches
Materials
For great results it is always best to use the recommended yarn, I have used approximately:-
100 grams of Stylecraft Special DK yarn in colour 1
100 grams of Stylecraft Special DK yarn in colour 2
4.00mm & 5.00mm crochet hooks, 2 small buttons
You can for a:-
Newborn baby use a 3.50mm & 4.50mm hooks
3-6 month use a 4.50mm & 5.50mm hooks
6-12 month use a 5.00mm & 6.00mm hooks
********************
Scroll down the page for the USA format
UK INSTRUCTIONS:
Sweater Back
# Rib – With 4.00mm hook and colour 1 make 7ch, work 1dc into 2nd ch from hook, 1dc into each ch to end. Turn. (6dc)
Working into BLO, work 1ch, 1dc into the stitch at the base of the 1ch, 1dc into each dc to end. Turn.
Rpt last row until 39 rows have been worked from beginning.
Turn your work so you are working into the row ends of ribbing.
Body – Carry both coloured yarns with you across each row by crocheting over them, with 5.00mm hook and colour 2, make 3ch, (RS) work 1tr into each row end to end. Turn. (38tr + 3ch)
2nd Row – Using colour 1, work 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss 1tr, 1dc into next tr, * rpt from * to * to last tr and 3tch, make 1ch, miss 1tr, work 1dc into top of 3ch. Turn. (20dc + 19, 1ch spaces)
3rd Row – With colour 2 make 3ch, work tr3tog into next 1ch space, * make 1ch, miss 1dc, tr3tog into next 1ch space, * rpt from * to * to last dc, work 1tr into dc. Turn. (18tr3tog, 1tr + 3ch)
4th Row – With colour 1, work 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss tr3tog, 1dc into next 1ch space, * rpt from * to * to last tr3tog and 3tch, make 1ch, miss tr3tog, work 1dc into top of 3ch. Turn.
5th Row – With colour 2 make 3ch, work tr3tog into next 1ch space, * make 1ch, miss 1dc, tr3tog into next 1ch space, * rpt from * to * to last dc, work 1tr into dc. Turn. #
Rpt 4th & 5th Rows eight more times or until back measures approx 10 inches from bottom (including the rib), alternating colours as set. Turn.
Shoulder Button Band – Continue with colour 2, make 1ch, work 1dc into the stitch at the base of the 1ch, 1dc into next tr3tog, * 1dc into next 1ch space, 1dc into next tr3tog,* rpt from * to * three more times. Turn. (10dc)
Starting with 1ch, 1dc into the stitch at the base of the 1ch, work 1dc into each dc to end. Turn.
Rpt last row twice. Fasten off.
Sweater Front – Rpt from # to # on back of sweater.
Rpt 4th & 5th Rows six more times or until back measures approx 7.5 inches from bottom (including the rib), alternating colours as set.
Shape Neck (side 1) – With colour 1, work 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss 1tr3tog, 1dc into next 1ch space, * rpt from * to * five more times. Turn. (7dc, 6, 1ch spaces)
Second Row – With colour 2 make 3ch, work tr3tog into next 1ch space, * make 1ch, miss 1dc, tr3tog into next 1ch space, * rpt from * to * to last dc, work 1tr into dc. Turn. (6 tr3tog, 1tr + 3ch)
Third Row – With colour 1, work 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss 1tr3tog, 1dc into next 1ch space, * rpt from * to * four more times. Turn. (6dc, 5, 1ch spaces)
Fourth Row – With colour 2 make 3ch, work tr3tog into next 1ch space, * make 1ch, miss 1dc, tr3tog into next 1ch space, * rpt from * to * to last dc, work 1tr into dc. Turn. Fasten off.
Shape Neck (side 2) – Return to remaining stitches on neck, miss 7, tr3tog, join colour 1 into next 1ch space, 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss 1tr3tog, 1dc into next 1ch space, * rpt from * to * four times to last tr3tog and 3ch, miss tr3tog, 1dc into top of 3ch. Turn. (7dc, 6, 1ch spaces)
Rpt Second, Third & Fourth Rows same as from side 1 of neck shaping. Fasten off.
Sleeves x 2
Rib – With 4.00mm hook and colour 1 make 7ch, work 1dc into 2nd ch from hook, 1dc into each ch to end. Turn. (6dc)
Working into BLO, work 1ch, 1dc into the stitch at the base of the 1ch, 1dc into each dc to end. Turn.
Rpt last row until 25 rows have been worked from beginning.
Turn your work so you are working into the row ends of ribbing. Carry both coloured yarns with you across each row by crocheting over them.
Upper Part – With 5.00mm hook and colour 2, make 3ch, (RS) work 1tr into the stitch at the base of the 3ch, 1tr into each row end to last row end work 2tr into row end. Turn. (26tr + 3ch)
Row 2 – With colour 1, work 1ch, 1dc into the stitch at the base of the 1ch, * make 1ch, miss 1tr, 1dc into next tr, * rpt from * to * to last tr and 3tch, make 1ch, miss 1tr, work 1dc into top of 3ch. Turn. (14dc, 13, 1ch spaces)
Row 3 – With colour 2 make 3ch, work 1tr into the stitch at the base of the 3ch, tr3tog into next 1ch space, * make 1ch, tr3tog into next 1ch space, * rpt from * to * to last dc, work 2tr into dc. Turn. (13, tr3tog, 3tr + 3ch)
Rpt 4th & 5th Rows from sweater back three more times or until sleeve measures approx 5 inches from bottom (including the rib), alternating colours as set. Fasten off. (15, tr3tog, 1tr + 3ch)
With WS facing join left shoulder together by whip stitching front to back. (join here on pic)
Neck Edge – With RS facing using 4.00mm hook work approx 52dc evenly around front and back neck edge including into row ends on the side of the button band. Turn.
Starting with 1ch, 1dc into the stitch at the base of the 1ch, work 1dc into each dc to end. Fasten off.
Finishing – Fold sleeves in half, place centre to shoulder seams and whip stitch into position, whip stitch the side and sleeve seams together, (see pic) weave in and trim off loose ends of yarn.
Turn through to RS. Sew on buttons to button band, use gaps between tr3tog’s for buttonholes.
USA format below:-
Crochet Cluster Block Baby Sweater USA
Pattern Number CNC566
Skill Level: Intermediate
Abbreviations USA
WS. Wrong Side
RS. Right Side
ch. Chain
sc. Single Crochet
dc. Double Crochet
rpt. Repeat
yo. Yarn Over
BLO. Back Loop Only
dc3tog. Double Crochet Three Together
Leaving last loop of each dc on hook, work 3dc in next stitch, yo, pull through all loops.
Base of ch. Work in first stitch
ch3 counts as first dc
Sample size to fit approx: 16 Inch chest 0-3 Month Baby
Length from shoulder approx: 9.5 inches
Under arm sleeve length approx: 5 Inches
Materials
For great results it is always best to use the recommended yarn, I have used approximately:-
100 grams of Stylecraft Special DK yarn in color 1
100 grams of Stylecraft Special DK yarn in color 2
An equivalent yarn would be a light worsted #3
4.00mm & 5.00mm crochet hooks 2 small buttons
You can for a:-
Newborn baby use a 3.50mm & 4.50mm hooks
3-6 month use a 4.50mm & 5.50mm hooks
6-12 month use a 5.00mm & 6.00mm hooks
********************
USA INSTRUCTIONS:
Sweater Back
# Rib – With 4.00mm hook and color 1 ch7, work 1sc in 2nd ch from hook, 1sc in each ch to end. Turn. (6sc)
Working in BLO, ch1, 1sc in the stitch at the base of the ch1, 1sc in each sc to end. Turn.
Rpt last row until 39 rows have been worked from beginning.
Turn your work so you are working in the row ends of ribbing.
Body – Carry both colored yarns with you across each row by crocheting over them, with 5.00mm hook and color 2, ch3, (RS) work 1dc in each row end to end. Turn. (38dc + ch3)
2nd Row – Using color 1, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip 1dc, 1sc in next dc, * rpt from * to * to last dc and 3tch, ch1, skip 1dc, work 1sc in top of ch3. Turn. (20sc + 19, ch1 spaces)
3rd Row – With color 2, ch3, work dc3tog in next ch1 space, * ch1, skip 1sc, dc3tog in next ch1 space, * rpt from * to * to last sc, work 1dc in sc. Turn. (18dc3tog, 1dc + ch3)
4th Row – With color 1, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip dc3tog, 1sc in next ch1 space, * rpt from * to * to last dc3tog and 3tch, ch1, skip dc3tog, work 1sc in top of ch3. Turn.
5th Row – With color 2, ch3, work dc3tog in next ch1 space, * ch1, skip 1sc, dc3tog in next ch1 space, * rpt from * to * to last sc, work 1dc in sc. Turn. #
Rpt 4th & 5th Rows eight more times or until back measures approx 10 inches from bottom (including the rib), alternating colors as set. Turn.
Shoulder Button Band – Continue with color 2, ch1, work 1sc in the stitch at the base of the ch1, 1sc in next dc3tog, * 1sc in next ch1 space, 1sc in next dc3tog,* rpt from * to * three more times. Turn. (10sc)
Starting with ch1, 1sc in the stitch at the base of the ch1, work 1sc in each sc to end. Turn.
Rpt last row twice. Fasten off.
Sweater Front – Rpt from # to # on back of sweater.
Rpt 4th & 5th Rows six more times or until back measures approx 7.5 inches from bottom (including the rib), alternating colors as set.
Shape Neck (side 1) – With color 1, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip 1dc3tog, 1sc in next ch1 space, * rpt from * to * five more times. Turn. (7sc, 6, ch1 spaces)
Second Row – With color 2, ch3, work dc3tog in next ch1 space, * ch1, skip 1sc, dc3tog in next ch1 space, * rpt from * to * to last sc, work 1dc in sc. Turn. (6 dc3tog, 1dc + ch3)
Third Row – With color 1, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip 1dc3tog, 1sc in next ch1 space, * rpt from * to * four more times. Turn. (6sc, 5, ch1 spaces)
Fourth Row – With color 2, ch3, work dc3tog in next ch1 space, * ch1, skip 1sc, dc3tog in next ch1 space, * rpt from * to * to last sc, work 1dc in sc. Turn. Fasten off.
Shape Neck (side 2) – Return to remaining stitches on neck, skip 7, dc3tog, join color 1 in next ch1 space, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip 1dc3tog, 1sc in next ch1 space, * rpt from * to * four times to last dc3tog and ch3, skip dc3tog, 1sc in top of ch3. Turn. (7sc, 6, ch1 spaces)
Rpt Second, Third & Fourth Rows same as from side 1 of neck shaping. Fasten off.
Sleeves x 2
Rib – With 4.00mm hook and color 1, ch7, work 1sc in 2nd ch from hook, 1sc in each ch to end. Turn. (6sc)
Working in BLO, ch1, 1sc in the stitch at the base of the ch1, 1sc in each sc to end. Turn.
Rpt last row until 25 rows have been worked from beginning.
Turn your work so you are working in the row ends of ribbing. Carry both color yarns with you across each row by crocheting over them.
Upper Part – With 5.00mm hook and color 2, ch3, (RS) work 1dc in the stitch at the base of the ch3, 1dc in each row end to last row end work 2dc in row end. Turn. (26dc + ch3)
Row 2 – With color 1, ch1, 1sc in the stitch at the base of the ch1, * ch1, skip 1dc, 1sc in next dc, * rpt from * to * to last dc and 3tch, ch1, skip 1dc, work 1sc in top of ch3. Turn. (14sc, 13, ch1 spaces)
Row 3 – With color 2, ch3, work 1dc in the stitch at the base of the ch3, dc3tog in next ch1 space, * ch1, dc3tog in next ch1 space, * rpt from * to * to last sc, work 2dc in sc. Turn. (13, dc3tog, 3dc + ch3)
Rpt 4th & 5th Rows from sweater back three more times or until sleeve measures approx 5 inches from bottom (including the rib), alternating colors as set. Fasten off. (15, dc3tog, 1dc + ch3)
With WS facing join left shoulder together by whip stitching front to back. (join here on pic)
Neck Edge – With RS facing using 4.00mm hook work approx 52sc evenly around front and back neck edge including in row ends on the side of the button band. Turn.
Starting with ch1, 1sc in the stitch at the base of the ch1, work 1sc in each sc to end. Fasten off.
Finishing – Fold sleeves in half, place centre to shoulder seams and whip stitch in position, whip stitch the side and sleeve seams together, (see pic) weave in and trim off loose ends of yarn.
Turn through to RS. Sew on buttons to button band, use gaps between dc3tog’s for buttonholes.
All pattern sizing, yarn weights, gauges etc on this website are approx as everybody crochets differently. Every effort is made to ensure the free crochet patterns are correct, but I am only human so mistakes may be made, if you find one please let me know by e-mail on crochetncreate@btinternet.com
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