Granny Square CLAS Top Crochet Pattern PDF with Full Video Tutorial
If you’ve been crocheting for a while, you already know that granny squares hold a very special place in the heart of this craft. They’re iconic, endlessly versatile, and carry that beautiful nostalgia of handmade textiles passed down through generations. But if you think granny squares are just for blankets and afghans, it’s time to completely reimagine what this classic motif can do. The Granny Square CLAS Top is a garment that brings together the timeless charm of granny squares and modern, wearable fashion — and with a full PDF pattern and step-by-step video tutorial available, it’s a project that makers of all skill levels can genuinely enjoy.
This post is going to walk you through everything you need to know about the Granny Square CLAS Top crochet pattern — what it is, why it’s worth making, how to get started, what materials you’ll need, and how the video tutorial can make the process smooth and enjoyable from your very first chain stitch to your last finishing knot.
What Is the Granny Square CLAS Top?
The CLAS Top — which stands for Classic Linked Assembly System or is sometimes simply used as a name indicating a seamless, connected construction method — is a crocheted garment made entirely from individually worked granny squares that are joined together as you go or assembled after completion. The result is a lightweight, airy, and stylish top that looks far more complicated than it actually is to make.
What makes the CLAS construction method so appealing is that there’s very little traditional sewing or seaming involved. Instead, the squares are connected in a deliberate layout that creates armholes, a neckline, and the body shape of the top all at once. It’s a geometric approach to garment making that suits crochet perfectly, because crochet naturally produces motifs and modules that can be arranged and joined in creative ways.
The Granny Square CLAS Top has become one of the most searched crochet garment patterns online for good reason. It photographs beautifully, it fits a wide range of body types because of its relaxed, flowy silhouette, and it can be customized in so many ways — color, yarn weight, square size — that no two finished tops ever look exactly the same.
Why You’ll Love Making This Pattern
Before diving into materials and instructions, it helps to understand why this particular pattern has captured the attention of so many crocheters around the world.
First, it’s genuinely beginner-friendly once you understand the granny square construction. If you already know how to make a basic granny square — working in rounds with clusters of double crochet stitches and chain spaces — you already have the core skill this project requires. Everything else is about joining and layout.
Second, the pattern PDF is designed to be clear and comprehensive. Good crochet pattern PDFs include written instructions, stitch counts, layout diagrams, sizing charts, and notes on yarn substitutions. A well-written CLAS Top PDF gives you all of that, making it easy to follow along even if you prefer reading instructions to watching video.
Third, the full video tutorial that accompanies this pattern is a game changer. Crochet is a tactile, visual craft, and seeing how to hold the yarn, how to join squares neatly, and how to work into the correct stitches makes everything click in a way that text alone sometimes can’t. The video tutorial walks through every stage of the project, from making your first square to assembling the final garment.
Materials You’ll Need
One of the beauties of the Granny Square CLAS Top is that it doesn’t require expensive or hard-to-find materials. Here’s what you’ll typically need to gather before you begin.
Yarn: The most popular choice for a CLAS Top is a lightweight cotton yarn, typically a DK weight or light worsted weight. Cotton is breathable, which makes the finished top comfortable to wear in warmer weather, and it has a beautiful drape that suits the open, lacy nature of granny square construction. Some makers prefer a cotton-acrylic blend for a softer hand feel. Many versions of this top are made in a single color for a sophisticated, modern look, while others use bold color blocking or use up scraps of yarn in a vibrant patchwork style.
Hook: For DK weight cotton, a 3.5mm to 4.0mm hook is typically recommended, though you should always check your gauge before starting any garment project. A smaller hook will produce a denser fabric while a larger hook creates a more open, lacier result.
Scissors and a yarn needle: You’ll need sharp scissors for cutting yarn and a blunt-tipped yarn needle for weaving in ends. When you’re making a top out of many individual squares, there will be a lot of yarn tails to weave in, so having a good tapestry needle on hand is essential.
Stitch markers: These are optional but incredibly helpful for keeping track of your rounds, especially when working multiple squares at the same time.
Measuring tape: You’ll need this for checking your gauge square and measuring finished pieces against the sizing chart in the pattern PDF.
Understanding Granny Square Gauge
Gauge is one of the most important and most commonly skipped steps in garment crochet, and the CLAS Top is no exception. Because the entire garment is built from individual squares, the size of each finished square determines the overall dimensions of the top. If your squares are even slightly larger or smaller than the pattern specifies, your finished garment will be a different size than expected.
The pattern PDF should include a gauge measurement that tells you the finished dimensions of a single blocked square. For example, a common measurement might be that one granny square measures 5 inches by 5 inches after blocking. If your square measures 4.5 inches, you’ll either need to go up a hook size or adjust your square count to compensate.
Blocking your gauge square is also important. Crochet fabric, especially cotton crochet fabric, relaxes and opens up when wet-blocked, and a blocked square will behave very differently than an unblocked one. Take the time to wet-block your gauge square, let it dry flat, and then measure it before committing to making the full number of squares for your size.
Working the Granny Squares
The granny square used in the CLAS Top is typically a traditional or slightly modified traditional granny square. Here’s a quick overview of how a classic granny square is worked, which mirrors what you’ll find in the full video tutorial.
You begin with a magic ring or a starting chain joined into a circle. From that center, you work the first round with clusters of three double crochet stitches separated by chain-two spaces, creating the four “corners” of the square. Each subsequent round adds another layer of clusters around the square, maintaining the corner chain spaces and adding straight-edge clusters along the sides. The square grows outward from its center in a beautiful, radial pattern, and each round adds the same cluster-corner-cluster rhythm.
The number of rounds you work determines the finished size of each square. A two-round granny square is quite small and delicate. A three-round or four-round square is the most common choice for garments because it creates a nicely proportioned motif that joins together into a wearable fabric weight.
The video tutorial covers each of these rounds in real time, showing exactly where to insert your hook, how to count your stitches, and how to work the corner chains neatly. For beginners especially, watching the hands in the video will help you develop the muscle memory for this stitch pattern much faster than reading alone.
Assembling the CLAS Top Layout
This is where the magic happens. The CLAS Top construction is all about how the squares are arranged and joined. The typical layout for a CLAS Top involves a specific number of squares arranged in rows and columns, with strategic gaps left in the layout to create the armholes and neckline.
The pattern PDF includes a layout diagram — essentially a grid showing you exactly where each square goes and which squares are joined to which. This diagram is one of the most important pages in the PDF, and the video tutorial usually dedicates a significant portion of its runtime to explaining it clearly.
In most CLAS Top layouts, the squares form the front and back of the body, with the top corners of the layout left open or partially open to create the shoulder and armhole spaces. Depending on your size, you might use anywhere from twelve to thirty or more squares in total. Larger sizes simply use more squares or larger squares, and the PDF sizing chart will guide you through which option is right for your measurements.
When it comes to joining the squares together, there are several methods you can choose from. The flat slip stitch join, the flat single crochet join, and the joining-as-you-go (JAYG) method are all commonly used. The video tutorial typically demonstrates one preferred method and explains how to achieve a neat, consistent seam. Many makers prefer the JAYG method because it eliminates a lot of the extra finishing work and keeps the project feeling manageable rather than overwhelming.
Finishing the Edges
Once all your squares are joined and the top is assembled, you’ll work a finishing border around the neckline, armholes, and hem. This border serves several purposes: it stabilizes the edges, prevents curling or stretching, and gives the garment a polished, intentional look.
Common border choices for the Granny Square CLAS Top include a simple round of single crochet, a picot edge, a shell stitch border, or a reverse single crochet (also called crab stitch) for a slightly raised, decorative edge. The pattern PDF will specify the recommended border, and the video tutorial will show you exactly how to work it evenly around each edge.
Taking your time with the finishing border makes an enormous difference in how professional the final top looks. Even if your squares are perfectly made and joined, a rushed or uneven border will stand out. Watch the video tutorial section on finishing at least once before picking up your hook for this step.
Sizing and Fit
The Granny Square CLAS Top is designed with ease in mind. Garments made from granny squares naturally have a relaxed, oversized silhouette, and the CLAS Top leans into this with a design that looks intentionally flowy and casual rather than tailored or fitted.
Most PDF patterns for this style include a range of sizes, typically spanning from extra-small through plus sizes. The sizing is based on finished garment measurements rather than body measurements, because ease is built into the design. The pattern PDF will include a size chart that shows both the recommended body measurements and the finished garment dimensions, so you can choose the right size for your preferred fit.
If you’re between sizes or want a different fit than what the standard sizes offer, granny square garments are actually quite easy to modify. Adding one more square to each side of the layout increases the width of the top, and adding a row of squares to the bottom increases the length. The modular construction means that sizing adjustments are logical and visible in the layout diagram.
Customizing Your CLAS Top
One of the most exciting things about the Granny Square CLAS Top is how much room there is for personalization. Here are some of the most popular ways makers have made this pattern their own.
Color blocking is a classic approach that never goes out of style. Choose two or three contrasting or complementary colors and assign them to different sections of your layout. For example, a two-tone top with a dark body and light accents creates a striking visual effect that looks intentionally designed.
Scrappy multicolor versions, where every square is made in a different yarn leftover from other projects, give the top a playful, bohemian energy that’s perfect for festival season or casual summer wear. This approach is also a fantastic way to use up your stash.
Some makers choose to work the border in a contrasting color to frame the top neatly, while others prefer a tonal border that blends seamlessly into the body. Both approaches work beautifully depending on your overall aesthetic vision.
You can also experiment with yarn type. Linen yarn gives the top a crisp, slightly structured drape. Bamboo yarn is incredibly soft and has a lovely sheen. A plant-fiber blend can give you the best of both worlds. Just be sure to make a gauge square with any yarn substitution, because different fiber contents behave very differently even when the yarn weight is the same.
Tips for Crochet Success
A few practical pieces of advice can make the process of making your CLAS Top even more enjoyable.
Work all your squares before joining any of them. This way, you can lay them out on a flat surface, arrange and rearrange your colors, and get a sense of the finished garment before committing to any joins. Taking a photo of your layout is also a good idea so you can refer back to it as you work.
Weave in your ends as you go rather than leaving them all for the end. When you’re working on a large project with many squares, saving all the finishing for the end can feel overwhelming and might even cause you to rush, which leads to less secure tails. A few minutes of weaving in ends after completing each square makes the final finishing session much more manageable.
Block your finished squares before joining them. Blocked squares are easier to join neatly because their edges are flat and consistent. A quick wet block — dampening each square, pinning it to your blocking mat to the correct dimensions, and letting it dry — takes some extra time but dramatically improves the final appearance of your top.
Join your squares with a consistent tension throughout. The joins are visible in the finished garment, and inconsistent tension in the join stitches will show. If you tend to crochet tightly when joining, try going up a hook size for that step.
Why the Full Video Tutorial Makes All the Difference
Written crochet patterns are wonderful, but video tutorials add a layer of understanding that’s hard to replicate on the page. When you can watch someone else’s hands working through the exact same stitches and joins you’re about to attempt, the process becomes much more intuitive.
The full video tutorial that accompanies the Granny Square CLAS Top PDF covers the project from beginning to end in a logical sequence. You can pause, rewind, and rewatch any section as many times as you need. The close-up camera work typical of quality crochet tutorials lets you see exactly how the hook enters the stitch, how the yarn is wrapped, and how the join is formed.
Many makers find that watching the video tutorial once all the way through before starting a project gives them a much better sense of the overall flow. Then they work with the PDF in hand, referring back to specific video segments whenever they encounter a step that’s not entirely clear from the written instructions alone. Using both resources together gives you the fullest possible support for a successful finish.
Who This Pattern Is Perfect For
The Granny Square CLAS Top is ideal for anyone who loves the granny square aesthetic and wants to expand their crochet wardrobe beyond home décor. If you’ve made plenty of blankets and dishcloths and are ready to try your hand at garment making, this is an excellent entry point. The construction is straightforward once you understand the layout, the stitch pattern is repetitive and meditative, and the results are genuinely wearable and stylish.
Experienced crocheters who already make garments regularly will find this pattern satisfying because of the creative freedom it offers. The modular construction lends itself to experimentation, and the CLAS method is a concept that can be applied to other garment shapes once you understand the principles.
And for anyone who loves using up stash yarn, the scrappy colorwork potential of this top means it’s also a practical project — one that clears out those small leftovers while producing something beautiful and useful.
Getting Your PDF and Video Tutorial
The Granny Square CLAS Top pattern PDF and full video tutorial are available for download, and having both resources together gives you everything you need to complete the project with confidence. The PDF is yours to keep, print out, and reference as many times as you like, and the video tutorial is there to support you through every step of the process.
Whether you’re making your first granny square garment or adding another wearable to a growing collection, the Granny Square CLAS Top is a project that rewards patience and creativity in equal measure. There are few things more satisfying in crochet than turning a pile of individual squares into a finished, wearable piece of art — and this top is exactly that.
Grab your hook, choose your colors, and get started. Your new favorite summer top is only a few dozen granny squares away.
