The Ultimate Guide: How to Calculate the Perfect Backing for Your Quilt

Quilting is a timeless craft that has been passed down through generations, bringing warmth and character to any home. As any experienced quilter knows, the quality and durability of a quilt depend greatly on its backing. Whether you’re a beginner or an expert quilter, understanding how to calculate the appropriate backing for your quilt is essential to creating a successful and long-lasting project. In this article, we will guide you through the process of calculating backing measurements, helping you achieve a professional finish for your next quilting masterpiece. So grab your measuring tape and let’s dive into the world of quilt backing!

Understanding Quilt Backing

When it comes to creating a quilt, many people focus on the top layer, carefully selecting fabrics and creating intricate designs. However, the backing is just as important in making a high-quality quilt. The backing not only adds stability and structure to the quilt, but it also adds an extra layer of comfort for the person using it. Without proper backing, a quilt may not hold up over time or provide the desired warmth. Therefore, understanding how to calculate backing for a quilt is crucial for creating a successful and durable final product.

Factors to Consider

Before diving into the calculations of backing for a quilt, there are several factors that need to be considered. The first is the size of your quilt. Quilts can range from small lap sizes to king-size beds, so it’s essential to determine the dimensions of your project before moving forward. Additionally, you must consider the type of fabric you’ll be using for your backing. Cotton is popular due to its durability and breathability, but flannel or minky fabrics can also be utilized for a cozier finish.

Another factor to keep in mind is whether you’ll be pre-washing your fabric before assembling your quilt. Pre-washing can cause shrinkage in some fabrics, which will affect your calculations. Finally, think about how you want your quilt top and back layers positioned. Most quilters prefer their backing fabric to run horizontally or vertically with their pieced top layer.

Measuring Your Quilt

The first step in calculating backing for a quilt is measuring the finished dimensions of your pieced top layer. Start by laying out the pieced top on a flat surface and measure the length and width accurately. Next, consider whether you’ll be adding any borders or sashings around your pieced top layer as these will affect your measurements.

Once you have the final measurements of your quilt top, add an additional 8-10 inches to both the length and width. This will allow for any shrinking or stretching that may occur during quilting and binding. This extra fabric is called overage and should be factored into your backing calculations.

Backing Fabric Width

After determining the total size of your quilt, the next step is to select a suitable backing fabric. Quilt fabrics generally come in two standard widths – 42-44 inches and 108 inches. The most commonly used fabric width for backing is 108 inches as it eliminates the need to piece together multiple widths of fabric.

To calculate how much fabric you’ll need, divide the total width of your quilt by the width of your chosen backing fabric. For example, if your quilt measures 90 inches wide and you’re using a 108-inch wide backing fabric, you’ll need approximately one yard of fabric (90/108 = 0.83).

Back Length Calculation

The back length calculation is slightly more complicated than the back width calculation due to seam allowances and potential shrinkage during quilting. Start by adding an additional inch to both the length and width of your quilt for seam allowances.

Next, take this new measurement and divide it by the width of your chosen backing fabric again. For example, if your quilt measures a finished size of 100 x 110 inches and you’re using a 108-inch wide backing fabric: (100+1) /108 = 0.93 yards needed for length.

Purchasing Your Backing Fabric

Once you have calculated both the back width and back length needed for your quilt, it’s time to purchase your chosen backing fabric. In most cases, quilters like to round up their measurements to ensure that they have enough material for their project. It’s always better to have a little extra fabric than not enough, so be generous with your calculations.

If you choose a standard width backing fabric, make sure to purchase enough lengths of fabric to match the total yardage needed. If you opt for a 108-inch wide backing, make sure to purchase the required number of yards based on your calculations.

Don’t Forget the Binding

When calculating your backing fabric, it’s essential not to forget the extra fabric needed for binding. Binding is the edge finish that goes around the entire perimeter of the quilt and holds all three layers together. To determine how much binding you’ll need, measure around the entirety of your quilt top and add an additional 10-12 inches for seam allowances and corners.

Quilt backing may seem like a simple step in creating a quilt, but it’s crucial to understand how to calculate it correctly. By considering factors such as size, type of fabric, and how it will be positioned in your quilt, you can ensure that your final product is not only beautiful but also durable and comfortable. Accurate measurements and purchasing the appropriate amount of backing fabric will result in a successful quilt that will be cherished for years to come.

The Importance of Calculating Backing for a Quilt

Quilting is an art that has been around for centuries, and it continues to be a beloved hobby for many people. Whether you are an experienced quilter or just starting out, it is important to understand the importance of calculating backing for your quilt. The backing of a quilt serves as the foundation for the entire piece, providing stability and support to the layers of fabric, batting, and quilting stitches. Without proper calculations, your quilt may not turn out as desired and could even diminish its overall quality.

One of the main reasons why calculating backing for a quilt is crucial is because it ensures that your quilt will lay flat and hang evenly when finished. The backing should be slightly larger than the quilt top on all sides to allow for any shrinkage or movement during the quilting process. If the backing is too small, it can cause puckering or bunching in the final product. On the other hand, if it is too large, it may be difficult to manage during quilting and can result in creases or wrinkles.

Another important aspect to consider when calculating backing for a quilt is fabric waste. Quilting can be an expensive hobby, so minimizing waste can help save money in the long run. By accurately measuring and cutting your backing fabric, you can reduce any unnecessary scraps that may go to waste. This will not only save money but also allow you to use those extra fabrics in future projects.

Moreover, calculating backing also helps with avoiding mistakes that may happen during quilting. When piecing together a quilt top, mistakes such as misaligned seams or inaccurate measurements can commonly occur. These mistakes may not affect the final appearance of the quilt top but can become more apparent when quilting on top of them. By having properly measured and cut backing fabric, these mistakes can be hidden underneath and not compromise the overall look of the quilt.

The Process: How to Calculate Backing for a Quilt

Now that we understand the importance of calculating backing for a quilt, let’s dive into the process itself. To accurately calculate backing, you will need to know the finished size of your quilt top and have an understanding of how much extra fabric is needed on each side. The general rule of thumb is to add 8 inches to each side of your quilt top. This extra fabric will account for shrinkage, movement during quilting, and also give you enough room for attaching binding when the quilt is finished.

To get an accurate measurement for your backing fabric, take the length and width of your quilt top and add 16 inches (8 inches on each side). For example, if your quilt top measures 60 x 80 inches, your backing fabric should measure 76 x 96 inches. It is always recommended to round up to the nearest inch to ensure that you have enough fabric to work with.

Another factor that may affect the calculation process is directional fabrics or prints. If you are working with fabrics that have a specific direction or pattern, you may need additional yardage to ensure that the design is not cut off or distorted when attaching it to the quilt top. Add this into your calculation by measuring how much extra fabric would be needed if certain pieces are rotated or flipped.

Choosing the Right Fabric for Your Quilt Backing

When it comes to selecting fabric for your quilt backing, there are a few things to keep in mind besides just color and design. First and foremost, make sure that the fabric you choose is suitable for quilting. This means it should be high quality, tightly woven cotton that will hold up well under tension from quilting stitches.

Another thing to consider is whether you want a solid color or a print for your backing. Oftentimes quilters will use a solid color to complement their quilt top and keep it simple. However, using a print can add another layer of interest to your quilt. Just make sure the print is not too busy or distracting from the overall design of your quilt.

Lastly, if you are on a tight budget, you can always use fabric from your stash for backing. However, be mindful of any directional prints or different fabric weights as this could affect the final appearance of your quilt.

In conclusion, calculating backing for a quilt is a vital step in the quilting process that should not be overlooked. It ensures that your quilt will lay flat and hang evenly, minimizes fabric waste, and helps avoid mistakes during quilting. By following the general rule of adding 8 inches to each side of your quilt top and understanding how directional fabrics may affect calculations, you can accurately determine how much fabric is needed for backing. Additionally, choosing appropriate fabrics for backing can elevate the overall aesthetic of your quilt. So next time you start a new quilting project, remember the importance of calculating backing and take the time to do it right. Your finished quilt will thank you.

1. How do I calculate the amount of backing fabric needed for my quilt?

The general formula for calculating backing fabric is (Width of quilt + 6 inches) x (Length of quilt + 6 inches). This accounts for the extra fabric needed for seam allowance and to ensure full coverage on all sides of the quilt.

2. Can I use the same fabric for both the backing and binding of my quilt?

While it is possible to use the same fabric, it is not recommended. This can result in a bulkier finished edge and may cause issues with durability over time. It is best to use a separate fabric for the backing and binding.

3. How do I determine how much batting I will need for my quilt?

The amount of batting needed depends on the size of your quilt. For traditional batting, you will typically need 4-6 inches larger than your quilt dimensions on all sides to account for shrinkage and trimming after quilting.

4. Can I use pre-cut fabrics or scraps for my backing?

In most cases, pre-cut fabrics or scraps will not provide enough continuous yardage to cover the entire size of a quilt’s back without seams. This can affect the overall look and durability of your quilt, so it is best to use one solid piece of backing fabric.

5. Do I need to prewash my backing fabric before using it on my quilt?

This is a personal preference, but it is generally recommended to prewash your fabrics before using them in a project as they may shrink or bleed dye during washing after quilting.

6. Can I adjust the dimensions when calculating backing size for my specific needs?

The formula given is a general guideline, but you can adjust or customize the dimensions to your liking. Just remember to add 6 inches to both the width and length of your quilt to account for seam allowance and full coverage. Keep in mind that additional seams may affect the overall appearance and durability of your quilt.

In conclusion, calculating backing for a quilt may seem like a daunting task, but with the right tools and knowledge, it can be easily done. The key to ensuring an accurately sized and well-supported quilt is to take proper measurements, factor in seam allowances and shrinkage, and choose suitable fabric.

It is important to keep in mind that the backing not only provides support for the quilt top but also adds to its overall aesthetics. Therefore, one should consider the color, pattern, and fabric type when selecting the backing.

Additionally, the size of the quilt should also be taken into account when determining the appropriate fabric width. Understanding basic sewing techniques such as piecing and pressing can also aid in creating a smooth and visually appealing back for your quilt.

Moreover, always remember to purchase an extra amount of fabric for any mistakes or unforeseen circumstances that may occur during the quilting process.

Lastly, despite being one of the final steps in creating a quilt, calculating backing is a crucial element that should not be overlooked. A well-measured and well-chosen backing will contribute to a successful end result – a beautifully crafted and functional quilt.

By following these guidelines on how to calculate backing for a quilt effectively, you can ensure that your finished project will not only be visually stunning but also have

Author Profile

Jill Nammar

My name is Jill but everyone calls me Jilly. I design original cross stitch patterns inspired by vintage French and flowers. Roses are my muse.
I hope you have a cozy time stitching my patterns. Put the kettle on, relax and create a heartwarming piece of hand-embroidered art. Personalize your home and turn up the soulful charm with soulful stitchery.

My goal is to provide you with pretty patterns that promote peaceful stitching. My wish is for you to discover the gentle beauty of hand-embroidery.My patterns have been featured around the web and in Homespun Magazine and Boston Magazine. I find my bliss in cross stitch.

From 2024, I have embarked on a new venture—writing an informative blog on the “Embroidery and Cross-Stitch” niche. This blog is an extension of my passion, where I share detailed posts and respond to queries related to embroidery and cross-stitching.

The blog covers a wide range of topics from beginner tips, pattern creation, historical insights, and the therapeutic benefits of stitching. My goal is to build a community where enthusiasts can learn, share, and grow in their embroidery skills, ensuring everyone can find their own bliss in cross-stitch just as I did.

Thank you to all my customers and readers who have supported Sew French. Your kind emails, photos of completed patterns, and continual encouragement fuel my dedication to this beautiful craft. Join me in stitching a world of beauty and peace, one pattern at a time.