If you love granny squares but want something fresh, modern, and wearable, the Grannies on-a-bias Crochet Pullover is the perfect project. This eye-catching sweater transforms classic granny motifs into a bold diamond layout by placing them on the bias. The result is a vibrant geometric pullover that looks intricate but is surprisingly easy to construct.

This design combines traditional granny square construction with smart assembly techniques, making it a fantastic project for confident beginners and intermediate crocheters alike. With colorful motifs, comfortable ribbing, and inclusive sizing, this pullover is both stylish and practical.

At the end of this article, you’ll be able to download the free PDF pattern to follow the complete instructions and diagrams.

Grannies on-a-bias Crochet Pullover Pattern

Skill Level

Easy

Even though the layout looks advanced, the construction uses simple stitches like double crochet, single crochet, and slip stitch.

Sizes

The pattern includes inclusive sizing:

To Fit Chest Measurement:

  • XS/S: 28–34″ [71–86.5 cm]

  • M: 36–38″ [91.5–96.5 cm]

  • L/XL: 40–46″

  • 2/5XL: 48–60″

Finished Chest Measurement:

  • XS/S: 39″ [99 cm]

  • M: 44″ [112 cm]

  • L/XL: 48″ [122 cm]

  • 2/3XL: 56″ [142 cm]

The slightly oversized fit makes this pullover cozy and comfortable.

Grannies on-a-bias Crochet Pullover Pattern

Materials

The original design uses:

  • Red Heart® Super Saver® (Contrast A)

  • Red Heart® All in One™ Granny Square Petite™ (Contrasts B, C, D)

  • U.S. H/8 (5 mm) and U.S. I/9 (5.5 mm) crochet hooks

  • Yarn needle

Helpful note: One ball of the Granny Square Petite yarn makes approximately 32 granny squares, which makes planning your motifs much easier.

Gauge

  • Granny Square: Approx. 4″ square (with larger hook)

  • 12 sc and 15 rows = 4″

Checking gauge ensures your pullover fits correctly, especially when working multiple motifs.

Pattern Overview

1️⃣ Granny Motifs

Each motif is worked in 3 rounds, with each color representing one full round.

The motifs begin in the center with a chain ring and build outward using:

  • Ch 6 (counts as dc + ch-3 space)

  • Double crochet clusters

  • Chain spaces

You will create different quantities of motifs depending on your size:

  • Make 26 (26–25–32) motifs with B

  • Make 20 (26–25–32) motifs with C

  • Make 24 (29–29–31) motifs with D

Each completed motif leaves a long tail for seaming, which makes assembly efficient.

2️⃣ Half Motifs

To shape the neckline and edges, the pattern includes Half Motifs, worked in rows instead of rounds.

You’ll make:

  • 18 (21–25–23) Half Motifs with A

These triangular pieces allow the garment to form the angled “on-a-bias” silhouette.

Assembly

Motifs are arranged diagonally following the assembly diagrams on pages 6–7 of the pattern.

The motifs are joined using a Flat Slip Stitch Join, worked through back loops only. This creates a decorative chain detail on the right side of the garment.

The diagram clearly shows color placement (A, B, C, D) and motif positioning for each size, which helps visualize how the sweater comes together.

Grannies on-a-bias Crochet Pullover Pattern

Shaping & Finishing

After assembling front and back panels:

  • Sew side seams and sleeve seams

  • Add bottom ribbing using smaller hook and single crochet worked in back loops only

  • Add ribbed cuffs

  • Add neck ribbing worked in slip stitches through back loops only

The ribbing gives the sweater a polished, professional finish and beautiful structure.

Why You’ll Love This Pullover

✨ Modern diamond layout
✨ Classic granny square charm
✨ Easy-level construction
✨ Inclusive sizing
✨ Fun color play
✨ Statement sleeves

This project is perfect if you love modular crochet. You can work motifs on the go and assemble later. It’s also ideal for experimenting with bold color combinations or even scrap yarn variations.

Grannies on-a-bias Crochet Pullover Pattern

Color Customization Ideas

While the original sample uses vibrant teal and multicolor granny squares, you could try:

  • Neutral grannies with a cream ribbing

  • Pastel rainbow for spring

  • Earth tones for fall

  • High-contrast black and neon for a bold statement

  • Monochrome gradients for a minimalist look

Because the motifs are small and repetitive, this is a fantastic stash-busting project.

Free PDF Pattern

You can download the complete official pattern here:

👉 Grannies on-a-bias Crochet Pullover PDF

Be sure to reference the assembly diagrams for your size when joining motifs.

If you make this pullover, I’d love to know will you keep the bold retro colors, or create your own modern twist? 💛