How much fabric for pillow covers?

When determining how much fabric for pillow covers, the amount needed depends on the pillow’s size, desired seam allowance, and whether you’re adding embellishments like ruffles or piping. For a standard 18×18 inch pillow, you’ll typically need about 1 yard of fabric for two sides, plus extra for any decorative elements.

How Much Fabric Do I Need for Pillow Covers?

Figuring out the right amount of fabric for your DIY pillow covers can seem a bit daunting, but it’s simpler than you might think! The key is to measure accurately and account for a few crucial factors. We’ll break down the process so you can confidently gather your materials for your next sewing project.

Understanding the Basics of Pillow Cover Fabric Calculation

Before you grab your measuring tape, let’s cover some fundamental concepts. You’ll need to know the dimensions of your pillow insert. This is the starting point for all calculations.

Next, consider the seam allowance. This is the extra fabric you’ll add around the edges of each piece to create a strong seam when sewing. A common seam allowance for pillow covers is 1/2 inch.

Finally, think about any extra design features. Will your pillow cover have a flange, piping, or a gathered ruffle? These elements will require additional fabric beyond the basic front and back panels.

Calculating Fabric for Simple Envelope Pillow Covers

Envelope pillow covers are a popular choice for beginners because they require no zippers or buttons. They feature an overlapping opening on the back.

For a standard 18×18 inch pillow insert:

Front Panel: You’ll need one piece of fabric measuring 18 inches (width) + 1 inch (seam allowance) = 19 inches wide. The height will be 18 inches + 1 inch (seam allowance) = 19 inches. So, cut one piece 19" x 19".
Back Panels: You’ll need two overlapping pieces. Each piece should be 19 inches wide (same as the front panel width plus seam allowance). For the height, you’ll take the pillow’s height (18 inches), add a generous overlap (about 6 inches for a good closure), and then add your seam allowance. So, cut two pieces 19" wide x (18" + 6" + 1") = 19" x 25".

Total fabric needed for an 18×18 inch envelope cover:

One piece: 19" x 19"
Two pieces: 19" x 25"

If your fabric is 44 inches wide, you can often cut all these pieces from a single yard of fabric. You’ll lay out the 19" x 19" piece, and then the two 19" x 25" pieces side-by-side along the width of the fabric.

Calculating Fabric for Zippered Pillow Covers

Zippered pillow covers offer a clean, professional finish and are easy to remove for washing. The fabric calculation is similar to the envelope style, but you’ll only need one back panel.

For a standard 18×18 inch pillow insert:

Front Panel: Cut one piece 19" x 19" (including seam allowance).
Back Panel: Cut one piece 19" x 19" (including seam allowance). You will then insert a zipper into this panel.

Total fabric needed for an 18×18 inch zippered cover:

One piece: 19" x 19"
One piece: 19" x 19"

Again, for an 18×18 inch pillow, you can typically get both pieces from a single yard of fabric if your material is 44 inches wide.