Crochet HDC Block Stitch Square: Written Pattern and Video Tutorial

The HDC block stitch square is one of my favorite crochet designs because it’s both fun and versatile. I first came across this stitch when experimenting with ideas for my 2025 crochet book blanket. What I love about this stitch is how easily it adapts to different styles and projects.

One of the best things about this square is how approachable it is. If you’re just starting out with crochet, the HDC block stitch is a fantastic technique to practice your tension and explore color changes. It’s slightly more tricky than your standard granny square but not too overwhelming. For more experienced crocheters, it’s a wonderful canvas for creativity.

In this post, I’ll show you how to crochet the HDC block stitch square step by step. You’ll get a written pattern, a video tutorial, and plenty of ideas to make this design your own. Plus, I’ll share how I’m using this square for my 2025 Crochet Book Blanket project, a year-long crochet project that combines my love of crochet and reading.

This post contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no additional cost to you. This helps support my work and allows me to continue creating free crochet tutorials and patterns!

Yarn Selection: Why I Chose Merino Charm

Before we jump into the tutorial, let’s talk about the yarn. For my HDC Block Stitch square, I used Merino Charm Yarn, which I received in one of the subscription boxes from Hooks and Needles. This yarn has a soft, luxurious feel and excellent stitch definition, making it ideal for showcasing the texture of the HDC block stitch.

If you enjoy trying out premium yarns and curated patterns, I highly recommend checking out the Hooks and Needles subscription boxes. They offer both crochet and knitting boxes, so there’s something for everyone. It’s a great way to discover new yarns and projects that you might not have tried otherwise!

The Written Pattern: HDC Block Stitch Square

Round 1: Make a magic ring, chain 2 (counts as a HDC stitch), work 1 HDC into the ring, chain 2, (2 HDC, chain 2) three times to create four groups of 2 HDC separated by chain-2 spaces. Slip stitch to the first HDC to join. Fasten off Color 1.

Round 2: Join Color 2 in any corner chain-2 space, chain 3 (counts as 1 SC and a chain 2), SC into the same corner chain-2 space, chain 2, *(1 SC, chain 2, 1 SC) into the next corner chain-2 space, chain 2; repeat from * around. Slip stitch to the first chain to join. Fasten off Color 2.

Round 3: Join Color 1 in any corner chain-2 space. Chain 2 (counts as a HDC stitch), (1 HDC, chain 2, 2 HDC) into the same corner chain-2 space. 2 HDC into each chain-2 space along the sides. (2 HDC, chain 2, 2 HDC) in each corner chain-2 space. Slip stitch to the first HDC to join.

Round 4: Join Color 2 in any corner chain-2 space, chain 3 (counts as 1 SC and a chain 2), SC into the same corner chain-2 space, chain 2, (1 SC, chain 2) between each HDC cluster along the sides. Repeat from * around. Slip stitch to the first SC to join. Fasten off Color 2.

Repeat rounds 3 and 4 until your square is your desired size. Tip: repeat round 3 once more to finish for a neater edge. Then weave in your ends and block.

Video Tutorial: HDC Block Stitch Square

For visual learners, I’ve created a detailed video tutorial to guide you through the process of making the HDC block stitch square. This tutorial walks you through each step to ensure success.

Uses for the HDC Block Stitch Square

TThe HDC block stitch square isn’t just beautiful—it’s incredibly versatile! Here are some ideas for what you can create:

• Blankets: Combine multiple squares for a cozy patchwork design. Mix colors or keep it monochromatic for a more minimalist look.

• Cushion Covers: Add a modern twist to your home decor by arranging squares in different color patterns.

• Tote Bags: Join a few squares for a colorful and functional bag. Add a liner for extra durability.

• Coasters: Use a single square for quick and stylish tableware. These make great gifts, too!

• Wall Hangings: Arrange squares in a unique pattern and mount them for a striking crochet wall feature.

This square works wonderfully in any project where you want a balance of texture and color. Its simple yet dynamic design adapts well to a variety of aesthetics. Don’t be afraid to experiment with different yarn types to see how they affect the texture and overall appearance of the square.

Color Planning Tips

Planning your colors can take your HDC block stitch projects to the next level. The design allows for endless creativity, whether you prefer a minimalist palette or a bold, colorful explosion.

I’ve experimented with a few different combinations while making my squares:

• Two Colors: Simple and classic, this approach is perfect for creating a cohesive look across multiple squares.

• Three Colors: Adds a bit more visual interest while keeping things manageable.

• Four Colors: Great for showcasing your creativity and experimenting with vibrant palettes.

Color-changing yarns, like those used in the Sprinkle Cowl, are another fantastic option. They do the hard work for you, blending shades seamlessly and adding a dynamic feel to your projects.

When planning your colors, consider the overall look you’re aiming for:

• Pastels: Soft and dreamy, ideal for baby blankets or delicate home decor. (Heatherly from We Crochet is PERFECT for this)

• Bolds: Vibrant and eye-catching, perfect for making a statement.

• Neutrals: Timeless and elegant, great for modern aesthetics.

You can also play with contrasts, pair light and dark shades for a striking effect or choose analogous colors for a harmonious look.

Flat DC Block Stitch Tutorial

The Flat DC Block Stitch is another variation of this versatile stitch, perfect for projects that aren’t worked in the round. Unlike the square version, this technique uses double crochet (DC) stitches and is worked flat, making it ideal for creating scarves, wraps, or even large rectangular blankets. The texture is smooth and geometric, giving your projects a modern and polished look.

The Flat DC Block Stitch is a fantastic stitch to have in your crochet repertoire watch the video to see how it’s done.

The Sprinkle Cowl: A Flat Block Stitch Design

The block stitch isn’t just for squares! You can also work it flat, which opens up a whole new world of possibilities. One of my favorite projects using this technique is the Sprinkle Cowl, a pattern I designed for WeCrochet. This lightweight, cozy accessory is perfect for adding a pop of color to any outfit.

This cowl is made with Chroma Worsted Yarn, a stunning color-changing yarn that adds depth and dimension to your projects. The gradual shifts in color make every piece unique and eye-catching.

The 2025 Crochet Book Blanket

I’m using the HDC block stitch square as the foundation for my 2025 Crochet Book Blanket project. A book blanket is a creative year-long project where each square represents a book you’ve read. It’s a fun and personal way to combine two hobbies into one meaningful piece. If you want to learn more about this project, check out my full post here.

For my book blanket, I’m using different colors for each square to match the book covers, and the HDC block stitch provides just the right amount of texture and versatility for this design.

How Will You Use The HDC Block Stitch Square?

The HDC block stitch square is a fun and versatile design that’s perfect for any crocheter. Whether you’re creating a blanket, experimenting with colors, or planning a unique project like a book blanket, this pattern has something for everyone.

I’d love to see your finished squares! Share your projects on social media and tag me so I can see your creations.