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Cozy Classroom Cardigan Crochet Pattern Size 4/5T

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There really isn’t much in the way of crochet clothing for boys, so we are remedying that with this NEW cardigan series! Woot woot! This little cardigan is perfect for a 4 or 5 year old, perfect for chilly weather, and is a free crochet pattern!

Cozy Classroom Cardigan free crochet pattern for 45t

Cozy Classroom Cardigan Crochet Pattern – 4/5T

Get the 3 – 6 month size here.
Get the 12 month size here.
Get the 2/3T size here.
Get the 4/5T size here.
Get the 6/8 youth size here.
Get the 8/10 youth size here.
Get the 10/12 youth size here.
Get the 14/16 youth size here.

See a bunch of photos and grab the ADULT size here.

Cozy Coed Cardigan


Armhole to armhole (across back) = 11″
Neck to hem = 16.5″
Upper arm = 10.5″ circumference
Cuff = 8.5″ circumference
Sleeve length = 14″
Body circumference = 26″

Gauge: 11 hdc and 10 rows in 4” square

Toddler size cozy classroom cardigan


Worsted weight (size 4/Aran) yarn (such as this)
-approx. 650 yards total for 4/5T cardigan
Crochet hook in size J/6mm
Elbow patches (optional – but darn cute!)

Adorable toddler size cardigan free crochet pattern

Special stitches used: 

Fhdc – Foundation Half Double Crochet
Fphdc – Front Post Half Double Crochet
Bphdc – Back Post Half Double Crochet
Fpdc – Front Post Double Crochet
Bpdc – Back Post Double Crochet

If you need help reading a crochet pattern, make sure you head over here and check out this detailed post.

boys cardigan crochet free pattern

4/5T Boys Cardigan Pattern

Row 1: Fhdc-52 (or Ch-53, hdc in 2nd ch from hk and each to end) (52)

Row 2: Ch-1, hdc in each st to end. (52)

Rows 3 – 30: Ch-1, hdc in each st to end. (52)

Row 31: Ch-1, hdc in 36 sts, ch-17. (53)

Row 32: Hdc in 2nd ch from hook and each across. (52)

Rows 33 – 43: Ch-1, hdc in each st to end. (52)

Fasten off.

Armholes for infant cardigan

Other side (with top of cardigan to your right as pictured)

Row 1: Ch-16, hdc in 17th st and in each st to end. (52)

Rows 2 – 13: Ch-1, hdc in each st to end. (52)

Fold two sides in and sew shoulders together using the mattress stitch.

Sewn shoulders of crochet cardigan pattern


Attach yarn at bottom right. 

Row 1: Ch-1, turn, hdc in 48 sts, 2hdc in next, hdc in next, 2 hdc in next, hdc in next (last front st) hdc2tog in same and next st (the shoulder seam sts), hdc in same. 2hdc in next 6 sts, hdc in next, hdc2tog in same and next st (the shoulder seam sts), hdc in same. 2hdc in next, hdc in next, 2 hdc in next, hdc in 48 sts. Ch-1, turn. (124)

First row of collar on Crochet cardigan pattern for boys

Row 2: Ch-1, turn, hdc in 50 sts, 2hdc in next, hdc in 2 sts, 2hdc in next, hdc in 16 sts, 2hdc in next, hdc in 2 sts, 2hdc in next, hdc in 50 sts. (128)

making the collar of a ccozy classroom cardigan for boys

Rows 3 – 5: Hdc in first, * fphdc around next st, bphdc around next * repeat between * * 15 times (33 sts so far), * fpdc around next st, bpdc around next * repeat between * * 30 times. * fphdc around next st, bphdc around next * repeat between * * 15 times , hdc in last. Ch-1, turn. (128)

Front post and back post crochet collar


Attach yarn at bottom of armhole with sl st.

Row 1: Ch-1, Hdc in each st around. (32)

Do not join, work in spiral instead using stitch markers to note first st of each round.

Rows 2 – 3: Hdc in each st around (32)

Row 4: Hdc in each st around, hdc2tog in last 2 sts (31)

Row 5: Hdc in each st around (31)

Rows 6 & 7: repeat rows 4 & 5 (30)

Rows 8 – 15: Hdc in each around (30)

Row 16: Hdc in each st around, hdc2tog in last 2 sts. (29)

Row 17: hdc in each st around (29)

Repeat rows 16 & 17 five times (ending with 24 sts)

Rows 28: Hdc in each st around (24)

Rows 29 – 30: * fphdc in first, bphdc in next * repeat between * * around. Slip st to top of next st. Invisible join and weave in ends.

Cozy classroom cardigan pattern 45t

Bottom (optional, not as pictured):

Sc in each row end around bottom of cardigan. Fasten off and weave in all ends. And now your 4/5T cardigan is almost complete! Add the elbow patches if desired, 3/4″ buttons, or a zipper. Done!

I want to see your finished projects!! Share photos of your Cozy Classroom 4/5T Cardigan with me by tagging @HeartHookHome on Instagram and Twitter, and by sharing in the Heart Hook Home Crochet Community group on Facebook!

Toddler size Cozy Classroom Cardigan free crochet pattern


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Toddler Hoodie Free Crochet Pattern (size 2/3T)
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  1. Thank you for the wonderful pattern! I’m about to add the elbow patches to the 4-5T sweater. Just curious if you had a rough estimate for inch size to cut the patch down too. The one I found was adult
  2. Hello! I'm making this for my nephew but nowhere does it tell me if the ch 1 on Row 2 and so on counts as the first HDC or not?
  3. Thank you Thank you Thank you for making something for boys! I have been searching forever and everything is for baby girls that might work out for a baby boys - just changing colors, but I have a 3 year old grandson and no where could I find a pattern, thank you for thinking of the young men in our lives!
  4. Hi there I'm making the 4/5 T I'm confused after chain 36 & chain 17.. Could you please explain? I watched the men video & before they chain they continue with HDC 36 for a couple rows before chaining
  5. I love the pattern! I just made 2 of the 4/5 size for my 3 year old twins. I want to add buttons. I noticed the sweater in the picture has buttons. What about button holes? Do you just kind of find a place and push the button through? I really want to add buttons because adding zippers is a whole can of worms I can’t handle lol.
    1. Hi Rebecca! Yes, button can be added and they will just slip in between the stitches of the opposite sides edging. =)
  6. Do you have a video tutorial for this? I'm new at reading stuff like this, and I'm getting confused.
    1. Hi Deborah! I have a companion video for the Cozy Coed (which is just the adult version of the Cozy Classroom Cardigan). You can find that here: https://hearthookhome.com/cozy-coed-cardigan-pattern-companion-video/
      1. I have tried to view video. I am stuck on the step where you hdc in 36 stitches then chain 17 (53) I would like to see the video.
  7. Love this pattern. I'm working on the 4/5. On the collar I've worked through R3. On R4 it's a repeat of R3 with the front posts and back posts but I'm wondering if R4 should start with a back post then front post and R5 would be the same as R3? Mine just doesn't look like I thing ribbing should. Does that make sense? Barb
  8. Hi, thank you for sharing this pattern. I’d like to make one for my grandson but, I can’t find the 3” elbow patches. Could you also please share how you attached the patches.
  9. Made this for a little boy who lives next to the barn I board my horses. Mom loves it and it is her favorite thing for her son to wear.
  10. I am wondering what size elbow patches you used for the 4/5 pattern sweater. I am making this for my grandson and have it nearly finished. I love the pattern and it has gone together very well. Thank you!!
    1. Hi Karen! I am glad you like the pattern! I think the patches were like 3" tall. Hope that helps!
    1. Hi Deidre! I am sorry you are having trouble...what exactly is wrong with that pattern size?
  11. this dude is looking so awesome, i am really impress with his style. this is like an inspirational design for me
  12. lovely dress. and looking very impressive. appreciate your work dear. keep going.
  13. I'm making the cardigan size 4T-5T for my grandson. I am stuck and need some help please. I'm om Other side (with top of cardigan to your right as pictured). It says to chain 16. Am I suppose to cut the yarn after I have fastened off the previous 1-43 rows? If so where do I start to chain 16 and where does Row 1 come in then? Thank you so much for your help.
    1. Hi Lynn! Yes, after completing rows 1-43, you will cut and fasten off. For the other side of your cardigan, you will make a new slip knot and chain 16...then skip over the first 16 stitches on the main body of the cardigan, and HDC in the 17th stitch and each remaining stitch across. So that 1st new row made will have 36 HDC and 16 chain stitches. Hope that makes sense!
  14. Muy lindo el sueter pero ser posible q las instrucciones sean en español por favor ?
  15. Hello Ashlea!!! Love your site! I'm making the 4/5T boys cardigan. At back on row 31 when you hdc 36 then chain 17, is this for the sleeve opening? If so don't you have to do this twice? Sorry I'm a little confused. When I look at the pictures it looked like you need two slits??? Can you get back to me? Making this for my grand son for Christmas . Thanks hun. ❤️ Jen
    1. Hey! Yes when you do the slits you will create the armhole. When you do the chaining on the other side and attaching the middle, that will be your other armhole. Hope that helps!
  16. Wow can't wait to make the cardigan. Your little chap looks too cute in his Cardiff. Thank you for this lovely cardigan.
  17. I like this model! Thanks for sharing the detailed description. I will definitely follow it to make a nice cardigan for my son.