Fabric 101: What Is a Fat Quarter? And When Should You Use One?
That little rectangle of fabric is more useful than you might think.
If you've spent any time shopping for quilting fabric, you've probably come across the term fat quarter.
And if you're new to quilting, you may have looked at the words fat quarter and thought… What exactly does that mean?
Don't worry. It's much simpler than it sounds!
A fat quarter is simply a quarter yard of fabric cut into a wider, more useful shape. A standard quilting-cotton fat quarter is approximately 18" x 22".
But why is it called a fat quarter? And when should you buy one instead of a regular quarter yard?
Let's break it down.
So, What Exactly Is a Fat Quarter?
Start with a yard of quilting fabric.
A typical quilting cotton is about 44" wide. If you buy a regular quarter yard, you'll get a piece that's approximately 9" x 44"—a long, skinny strip that runs from selvage to selvage.
A fat quarter contains the same amount of fabric, but it's cut differently.
Instead of cutting one long 9" strip, a yard is first cut into two 18" x 44" pieces. Each of those pieces is then cut in half across the width, giving you four pieces that are approximately 18" x 22".
And that's your fat quarter!
The difference is really just the shape.
And that shape makes a surprisingly big difference when you're cutting quilt pieces.
Fat Quarter vs. Quarter Yard
Here's the easiest way to think about it:
| Fat Quarter | Regular Quarter Yard | |
|---|---|---|
| Approximate size | 18" x 22" | 9" x 44" |
| Amount of fabric | ¼ yard | ¼ yard |
| Shape | Shorter and wider | Long and narrow |
| Especially useful for | Quilt blocks, appliqué, small projects | Strips, binding, sashing, borders |
Neither one is better than the other. They simply work better for different things.
A regular quarter yard gives you a long strip of fabric, which can be exactly what you need for certain projects.
But when you need a piece that's wider than 9", a fat quarter gives you a lot more flexibility.
Why Do Quilters Love Fat Quarters?
There are a few reasons fat quarters have become such a staple in quilting.
They're great for variety.
Want to use lots of different fabrics in a quilt without buying a quarter or half yard of every single one?
Fat quarters are perfect.
You can collect a variety of colors and prints while buying relatively small amounts of each.
This is one reason you'll often see fabric collections offered as fat quarter bundles. A bundle can give you a sampling of many, or all, of the prints in a collection without needing to purchase yardage of every fabric.
They're great for quilt blocks.
The wider shape gives you room to cut pieces that simply wouldn't fit across a 9" wide quarter yard.
That makes fat quarters especially useful for patchwork blocks and other projects that require larger shapes.
They're great for smaller projects.
Fat quarters aren't just for quilts!
They're also useful for things like:
-
Small bags and pouches
-
Quilted accessories
-
Appliqué
-
Placemats
-
Small home décor projects
-
Scrappy quilt projects
Of course, how much you can make from one fat quarter depends on the pattern and the size and arrangement of the pieces you're cutting. Always check your pattern's specific requirements before assuming one fat quarter will be enough.
When Should You Buy a Fat Quarter?
This is where fat quarters really shine.
I'd reach for a fat quarter when:
You want to try a fabric without committing to a lot of yardage.
Found a print you absolutely love but aren't sure where you'll use it yet? A fat quarter is a great way to add it to your stash.
You need a particular fabric for a quilt block.
If your pattern specifically calls for a fat quarter, that's exactly what you should be looking for.
You're making a scrappy quilt.
Fat quarters make it easy to build a collection of different colors and prints without ending up with yards and yards of every fabric.
You want to play with color.
Sometimes the best way to figure out whether fabrics work together is to get them home and put them next to each other.
A handful of fat quarters gives you plenty of fabric to experiment with.
You love a fabric collection.
This might be my favorite reason of all.
A fat quarter bundle lets you bring home a whole group of fabrics that were designed to work together. You get all that color and variety without having to choose just one or two favorites.
One Important Thing to Remember
While 18" x 22" is the standard size you'll commonly see, fat quarters are approximate cuts rather than a guarantee that every piece will measure exactly 18" x 22". Fabric width can vary, and the actual usable dimensions can also be affected by things like shrinkage if fabric has been prewashed.
That's why, if you're working on a pattern where the measurements are particularly close, it's always a good idea to check the actual size of your fabric before cutting.
And if your pattern calls for several fat quarters, don't assume that four fat quarters are interchangeable with one yard of yardage. The amount of fabric is the same, but the way it's divided up can make a big difference in what you can cut from it.
So… Should You Buy a Fat Quarter or a Quarter Yard?
The short answer?
It depends on what you're making!
If you need a long, narrow strip, a regular quarter yard might be exactly what you need.
If you need a wider piece for quilt blocks, want to add a variety of prints to your stash, or simply want to try a fabric without buying much yardage, a fat quarter is often the better choice.
And if you're shopping for fabric and still aren't sure which one you need?
That's what the pattern is for.
Quilting has a lot of terminology that can feel confusing at first. Fat quarters, fat eighths, jelly rolls… it can sound like we're making a quilt or ordering lunch. 😂
But once you understand what these terms mean, they start to make a lot more sense.
And before long, you'll be looking at a stack of fat quarters and thinking, “I know exactly what I can do with these.”
That's when the fun really begins.
A little North Star note
Not sure what cut you need for your next project?
If you're ever unsure whether you need yardage, a fat quarter, or something else, check your pattern's fabric requirements before ordering. And if you're still confused, don't hesitate to ask!
I'd much rather help you figure it out than have you end up with the wrong cut sitting in your sewing room. ❤️
