How to Create a Charming Granny Square Toddler Sweater

Materials & tools you'll need

Step 1 — Join the four granny squares

Before joining, make sure all four granny squares are the same size and properly finished off. Arrange them in your desired order with each corner matching up neatly. Using your crochet hook, create a chain stitch of 3 to 4 stitches across the top of one square where two corners meet. Insert your hook into the next square's corner, yarn over and pull through the loop on your hook to complete a single crochet stitch. Continue this process all the way around the squares, joining all four corners in the same way. Fasten off the yarn and weave in all ends carefully for a clean, polished finish.

Step 2 — Sew on the sleeves

To attach the sleeves, use the blanket stitch for a secure and tidy join. Thread your tapestry needle with yarn that matches the body of the sweater. Starting at one end of the sleeve, insert the needle through one loop of a crochet stitch and bring it out through the corresponding space in the next stitch along, skipping one single crochet stitch as you go. Continue this process all the way around the sleeve until you return to the starting point. Secure the thread by weaving it through several stitches on the back side of the sweater so nothing is visible from the outside.

Step 3 — Create the collar

For a charming tapered and cinched neckline, work the front post back post double crochet stitch (FPdc, BPdc) around the neckline. Insert your hook from the front to the back of one loop, then from the back to the front of the next loop, yarn over and pull through both loops on your hook. Repeat this alternating front post and back post pattern all the way around the neckline until you reach your desired collar length. The alternating stitches create a ribbed, cinched texture that draws the neckline in beautifully. Fasten off and weave in the ends.

Step 4 — Block the project

To ensure the sweater maintains its shape and size, block it using a blocking mat, pins, and water as needed. Blocking helps all four granny squares lie flat and even, evens out any tension differences between squares, and makes the seams and joins look neat and professional. Follow the specific instructions on your yarn label for soaking, rinsing, and drying times — different fibers require different blocking methods. Once fully dry, the sweater is ready for its little wearer to enjoy.

Frequently asked questions

What materials are needed to make a granny square toddler sweater?
You will need cotton or acrylic yarn in various colors, a crochet hook suitable for your chosen yarn, a tapestry needle for sewing in sleeves, stitch markers, blocking pins and a blocking mat, and scissors.

How do I join four granny squares together for the sweater?
Make sure all four granny squares are the same size and properly finished. Arrange them with each corner matching up. Using your crochet hook, create a chain stitch of 3 to 4 stitches across the top of one square where two corners meet. Insert your hook into the next square's corner, yarn over and pull through to complete a single crochet stitch. Continue around, joining all four corners the same way, then fasten off and weave in ends.

How do I sew sleeves onto a granny square sweater?
Use the blanket stitch. Thread your tapestry needle with matching yarn, insert through one loop of a crochet stitch, and bring it out through the corresponding space in the next stitch along, skipping one single crochet stitch. Continue all the way around, then secure by weaving the thread through several stitches on the back of the sweater.

How do I use the front post back post double crochet stitch to create a cinched neckline?
Insert your hook from the front to the back of one loop, then from the back to the front of the next loop, yarn over and pull through both loops. Repeat around the neckline until you reach your desired collar length. This alternating stitch creates a tapered, cinched neckline with a ribbed texture.

Why should I block a granny square sweater?
Blocking helps the sweater maintain its shape and size, ensures the granny squares lie flat and even, and makes it easier to sew on sleeves or hem the edges neatly. Follow the instructions on your yarn label for soaking, rinsing, and drying times.

Enjoyed this tutorial?

Find 60+ free tutorials on YouTube. Grab a pattern from the Etsy shop, or go deeper with a community membership.

Free tutorials on YouTube →    Shop on Etsy →    Join the community →