Knitting Tutorial: How to Seam Two Pieces Together

Knitting Tutorial: How to Seam Two Pieces Together

Knitting is a creative and enjoyable craft that allows you to create beautiful and functional pieces of clothing and accessories. One technique that is commonly used in knitting is joining two pieces together. This can be done to create a seamless and polished look or to combine two separate pieces into one larger item. In this step-by-step guide, we will walk you through the process of knitting two pieces together, so you can expand your knitting skills and create unique and personalized projects.

To knit two pieces together, you will need a few basic knitting supplies, including your knitting needles, yarn in the desired color and weight, and a tapestry needle. Before you begin, make sure that both pieces you are joining are the same gauge and that any necessary blocking or sewing has been completed. Once you have your supplies ready, you can start the process of knitting the two pieces together.

The exact steps for knitting two pieces together may vary depending on the pattern you are following, but the basic technique remains the same. First, lay the two pieces side by side with the right sides facing up and align the edges that you want to join. Then, using the tapestry needle and a length of yarn, begin stitching the two pieces together by inserting the needle under the first stitch on the first piece and the corresponding stitch on the second piece. Pull the yarn through, leaving a tail for weaving in later, and continue stitching along the edges, making sure to match up the stitches as closely as possible.

As you work your way along the edges, you may want to use a stitch marker or safety pin to hold the pieces together and prevent them from slipping out of place. Additionally, you can use a contrasting color of yarn to make it easier to see where you need to insert the needle and help ensure that your stitches are even and tidy. Once you have stitched the two pieces together, weave in the loose ends of yarn and trim any excess. You can then continue with your knitting project, confident in the knowledge that your pieces are securely joined and ready for the next steps.

Getting Started: Knitting Basics

Welcome to the world of knitting! Whether you’re a beginner or have some experience, it’s always good to brush up on the basic techniques before starting a new project. In this section, we’ll cover the essentials you’ll need to know to get started with knitting.


To get started with knitting, you’ll need a few basic supplies:

  • Knitting needles: Choose needles that are suitable for your project. They come in different sizes and lengths.
  • Yarn: Select a yarn that matches the knitting needle size and the desired look of your project.
  • Scissors: You’ll need scissors to cut the yarn.
  • Tapestry needle: This needle is used for weaving in loose ends.
  • Measuring tape: It’s important to measure your work as you go to ensure the correct size.

Casting On

The first step in knitting is casting on, which creates the foundation row of stitches on your needle. There are different methods for casting on, such as the long-tail cast on, the knitted cast on, and the backward loop cast on. Once you’ve mastered one method, you can try others to see which one works best for you.

Knit Stitch

The knit stitch is one of the basic stitches in knitting. It creates a smooth, v-shaped fabric. To knit, insert the right-hand needle into the first stitch on the left-hand needle from left to right. Loop the yarn around the right-hand needle and pull it through the stitch, slipping the old stitch off the left-hand needle. Repeat this process for each stitch on the left-hand needle, and you’ll have knit stitches on the right-hand needle.

Purl Stitch

The purl stitch is another basic stitch in knitting. It creates a bumpy, horizontal fabric. To purl, insert the right-hand needle from right to left into the first stitch on the left-hand needle. Loop the yarn around the right-hand needle and pull it through the stitch, slipping the old stitch off the left-hand needle. Repeat this process for each stitch on the left-hand needle, and you’ll have purl stitches on the right-hand needle.

Knitting in the Round

Knitting in the round is a technique used to create tubes of fabric without seaming. It’s commonly used for projects like hats and socks. To knit in the round, you’ll need either double-pointed needles or circular needles, depending on the size of your project. The stitches are joined in a circle, and you knit each round without turning the work.

Binding Off

When you’re finished with your knitting project, you’ll need to bind off to secure the stitches and create a finished edge. There are different methods for binding off, such as the basic bind off, the picot bind off, and the stretchy bind off. Each method creates a different look, so choose the one that suits your project best.

Practice Makes Perfect

Learning to knit takes time and practice. Don’t be discouraged if your first projects don’t turn out perfectly! The more you practice, the better you’ll become. Start with simple patterns and gradually work your way up to more complex designs. With time, patience, and perseverance, you’ll soon be knitting beautiful creations.

Now that you know the knitting basics, you’re ready to start your next knitting project. Gather your supplies, choose a pattern, and get knitting!

Choosing the Right Yarn and Needles

When it comes to knitting, choosing the right yarn and needles is crucial to the success of your project. The yarn and needles you select will determine the texture, drape, and overall look of your final piece. Here are some factors to consider when choosing your yarn and needles:

  • Fiber: Different fibers have different qualities, so it’s important to consider the intended use of your knitted piece. For example, if you’re knitting a warm winter sweater, you might opt for a cozy wool yarn. If you’re knitting a lightweight summer top, a cotton or bamboo yarn might be a better choice.
  • Weight: Yarns come in a variety of weights, from lace weight to super bulky. The weight of the yarn will determine the thickness of your finished piece. Be sure to check the pattern you’re using for the recommended yarn weight.
  • Color: Yarns come in a wide range of colors, so consider the look you want to achieve. Do you want a solid color or a variegated yarn with multiple colors? Also, keep in mind that certain stitches and patterns might look different depending on the color of the yarn.

Once you have chosen your yarn, you will also need to select the right needles. Here are some factors to consider when choosing your needles:

  • Material: Needles can be made from various materials, including metal, wood, and plastic. Each material has its own characteristics, so consider factors such as weight, flexibility, and comfort when making your choice.
  • Size: Needle sizes are indicated by numbers or letters, and the size will determine the gauge of your knitting. The pattern you’re following will specify the recommended needle size.
  • Type: There are different types of knitting needles, such as straight needles, circular needles, and double-pointed needles. The type of needles you choose will depend on the project you’re working on.

Remember, the right combination of yarn and needles can make all the difference in your knitting project. Take the time to consider your options and choose materials that will enhance your knitting experience and give you the best results.

Casting On: The First Stitch

When you begin a knitting project, one of the first steps you will need to take is called casting on. This is the process of creating the first stitches on your needles, which will serve as the foundation for your knitting.

There are several methods for casting on, but one of the most common and versatile methods is the long-tail cast-on. Here is a step-by-step guide on how to do the long-tail cast-on:

  1. Hold the end of the yarn in your right hand, leaving a tail that is long enough to create the desired number of stitches.
  2. Make a slipknot by forming a loop with the tail end of the yarn.
  3. Insert your knitting needle into the loop from front to back, and tighten the loop around the needle. This loop will be your first stitch.
  4. Hold the needle with the slipknot in your right hand, and the other needle in your left hand.
  5. Using your left thumb and index finger, hold the tail end of the yarn and the working yarn (the yarn connected to the ball) together.
  6. With your right hand, bring the needle under the tail end of the yarn and then over the working yarn.
  7. Use the needle to pull a loop of the yarn through the loop on your left hand needle, creating a new stitch.
  8. Tighten the stitch by gently pulling on the working yarn.
  9. Repeat steps 6-8 until you have cast on the desired number of stitches.

After completing the casting on process and creating the desired number of stitches, you are ready to begin knitting your project. Casting on is an essential skill to master, as it sets the stage for the rest of your knitting. With practice, you will become more comfortable with the process and be able to effortlessly start any knitting project.

Knitting Stitch Patterns: A Variety of Options

When it comes to knitting, stitch patterns can add interest and texture to your projects. There are countless stitch patterns to choose from, each creating a unique design. Whether you’re a beginner or an experienced knitter, here are some popular stitch patterns to try:

Garter Stitch

Garter stitch is one of the most basic and easiest stitch patterns. It is created by knitting every row, resulting in a textured fabric with ridges. This stitch pattern is commonly used for scarves, blankets, and dishcloths.

Stockinette Stitch

Stockinette stitch is another basic stitch pattern that creates a smooth and flat fabric. It is made by alternating between knitting one row and purling the next row. Stockinette stitch is commonly used for sweaters, hats, and socks.


Ribbing is a stitch pattern often used for cuffs, collars, and hems. It creates a stretchy fabric with vertical columns of knit and purl stitches. Common ribbing patterns include K1, P1 (knit one, purl one) and K2, P2 (knit two, purl two).

Seed Stitch

Seed stitch is a textured stitch pattern that alternates between knit and purl stitches. It creates a bumpy fabric that resembles seeds. Seed stitch is often used for scarves, cowls, and baby blankets.

Cable Stitch

Cable stitch patterns involve crossing stitches over each other to create intricate designs. Cable patterns can range from simple twists to complex braids. They are commonly used for sweaters, hats, and blankets to add a decorative element.

Lace Stitch

Lace stitch patterns create open, delicate designs resembling lace. These patterns often involve yarn overs and decreases to create holes and intricate motifs. Lace stitch patterns are commonly used for shawls, wraps, and lightweight garments.

Moss Stitch

Moss stitch, also known as seed stitch, is a combination of knit and purl stitches. It creates a textured fabric with a bumpy appearance. Moss stitch is commonly used for scarves, hats, and baby blankets.


When choosing a stitch pattern for your project, consider the desired drape, thickness, and complexity of the design. Some stitch patterns may require additional skills, such as cabling or lacework. It’s a good idea to practice new stitch patterns on a small swatch before starting a larger project.

With so many stitch patterns to choose from, you can add creativity and personalization to your knitting projects. Experiment with different stitch patterns to create unique and beautiful designs!

Knitting Two Pieces Separately

If you prefer to work on separate pieces and then join them together, here is a step-by-step guide:

  1. Start by knitting the first piece following your desired pattern. Make sure to leave a long tail at the end.
  2. Once the first piece is complete, set it aside and start knitting the second piece using the same pattern.
  3. When both pieces are finished, lay them flat on a surface and make sure they are aligned correctly. Double-check that the measurements match.
  4. Take the long tail from the first piece and thread it onto a yarn needle. Use the yarn needle to sew the pieces together. You can choose to use a whipstitch, mattress stitch, or any other suitable joining method.
  5. Repeat the sewing process for all edges that need to be joined. This usually includes the sides, shoulders, and neckline.
  6. Once all the pieces are securely sewn together, weave in the loose ends to finish the project.

By knitting the pieces separately and later joining them together, you have more control over the shape and size of the final garment. This method can also be useful when knitting complex patterns or colorwork designs.

Remember to always follow your pattern instructions and adjust the joining method according to your specific project. Happy knitting!

Joining the Pieces: Creating a Seam

Once you have finished knitting your two pieces, it’s time to join them together to complete your project. This is done by creating a seam.

Step 1: Prepare the Pieces

Before you start creating the seam, make sure that both pieces are blocked and have the same measurements. You can use pins to hold the pieces in place if necessary.

Step 2: Lay the Pieces Right Side Facing

Place the two pieces next to each other with their right sides facing each other. Make sure that the edges line up evenly.

Step 3: Thread and Knot the Yarn

Thread a tapestry needle with a piece of yarn that matches the color of your knitting. Make a small knot at the end of the yarn to secure it in place.

Step 4: Start Sewing

  1. Insert the needle through the first stitch of the back piece from the inside to the outside. Leave a small tail of yarn on the inside.
  2. Insert the needle through the corresponding stitch on the front piece from the outside to the inside.
  3. Repeat this process, going through each stitch from the back piece to the front piece and vice versa.
  4. Make sure to keep the tension consistent throughout the seam. Avoid pulling the yarn too tight, as it may cause the seam to pucker.

Step 5: Finishing the Seam

When you reach the end of the seam, insert the needle through the last stitch and pull the yarn through to the inside. Weave in the loose ends of yarn by going back through the seam, following the path of the stitches.

Step 6: Blocking and Finishing

Once the seam is complete, block your project again to help it retain its shape. Allow it to dry completely before wearing or using.

Congratulations! You have successfully joined the two pieces together and created a beautiful seam. Now you can enjoy your finished knitted project!

Finishing Touches: Blocking and Weaving in Ends

Once you have completed knitting your two pieces together, there are a few finishing touches you can add to improve the final appearance and durability of your project. Two important steps in this process are blocking and weaving in ends.


Blocking is a technique used to shape and smooth your knitted fabric. It involves wetting or steaming the fabric and then laying it out flat to dry. Blocking can help even out any uneven tension in your knitting and give your finished piece a more polished look.

To block your knitted pieces, follow these steps:

  1. Fill a sink or tub with lukewarm water.
  2. Place your knitted pieces into the water, gently pressing them down to submerge them.
  3. Let the pieces soak for about 15 minutes.
  4. Remove the pieces from the water and gently squeeze out the excess water.
  5. Lay a clean, dry towel on a flat surface.
  6. Place your knitted pieces on top of the towel and gently shape them to the desired size and dimensions.
  7. Pin the pieces in place using rustproof pins or blocking wires.
  8. Leave the pieces to dry completely.

Weaving in Ends:

Weaving in ends is the process of hiding and securing the loose yarn ends that are left after completing a knitting project. This step is important to prevent your project from unraveling and to give it a neat and finished appearance.

To weave in ends, follow these steps:

  1. Thread the loose end onto a tapestry needle.
  2. Gently weave the needle through the stitches on the wrong side of your knitted fabric.
  3. Continue weaving the needle back and forth for about an inch, being careful not to pull too tightly.
  4. Trim the excess yarn, leaving a small tail.
  5. Repeat this process for all loose ends.

By blocking your knitting and weaving in ends, you can enhance the appearance and durability of your finished project. These finishing touches will give your work a professional look and ensure that it lasts for years to come.

Next Steps: Exploring Advanced Techniques

Now that you have learned the basics of knitting two pieces together, you may be interested in exploring more advanced techniques to take your knitting skills to the next level. Here are a few techniques you can try:

  • Lace Knitting: Lace knitting involves creating intricate patterns and designs using yarn overs, decreases, and other techniques. This can add a beautiful decorative element to your knitting projects.
  • Cable Knitting: Cable knitting allows you to create textured cables on your knitting projects. By crossing stitches over each other, you can create the appearance of interwoven cables.
  • Fair Isle Knitting: Fair Isle knitting, also known as stranded knitting, involves using multiple colors of yarn to create intricate patterns. This technique is commonly used in traditional Scottish and Nordic knitting.
  • Intarsia Knitting: Intarsia knitting is a colorwork technique that involves knitting with multiple colors but without carrying the yarn across the entire row. Instead, a separate ball or bobbin of yarn is used for each color block.
  • Double Knitting: Double knitting is a technique that creates a double-sided fabric with two layers of knitting. This can be used to create reversible patterns or to add extra thickness and warmth to your projects.
  • Provisional Cast On: A provisional cast on allows you to temporarily cast on stitches that can be easily removed later. This is useful for techniques such as grafting or joining two pieces of knitting without a visible seam.

There are many more advanced knitting techniques to discover and explore. Don’t be afraid to experiment and challenge yourself with new techniques. Knitting is a versatile craft with endless possibilities, and with practice, you can create beautiful and intricate designs.


What is the purpose of knitting two pieces together?

The purpose of knitting two pieces together is to create a seamless join between the two pieces, ensuring a smooth and continuous fabric.

What tools and materials do I need to knit two pieces together?

To knit two pieces together, you will need knitting needles, yarn, a tapestry needle, and scissors.

Can I knit two pieces together if they are different sizes?

Yes, you can still knit two pieces together even if they are different sizes. However, you may need to make adjustments in order to align the stitches properly.

What is the basic technique for knitting two pieces together?

The basic technique for knitting two pieces together involves inserting the needle into the first stitch on both pieces, wrapping the yarn around the needle, and pulling it through to create a new stitch.

How do I ensure that the pieces are aligned properly when knitting them together?

To ensure that the pieces are aligned properly when knitting them together, you can use stitch markers or yarn scraps to mark the corresponding stitches on each piece.

Can I use a different knitting stitch to join two pieces together?

Yes, you can use different knitting stitches to join two pieces together, such as a slip stitch or a mattress stitch. The choice of stitch will depend on the desired outcome and the type of fabric you are working with.

Is it necessary to weave in the ends after knitting two pieces together?

Yes, it is necessary to weave in the ends after knitting two pieces together in order to secure the join and create a neater finish. You can use a tapestry needle to weave the ends in discreetly.


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