Friday, February 20, 2026

How to Sew an Envelope-Back Pillowcase


A pillowcase with an envelope back is the easiest type of pillowcase to sew!


At least for decorative pillows! If you’re sewing a pillow for a bed, do yourself a favor and check out the “magic” pillowcase tutorial.

I like how neat and polished an envelope-back pillowcase looks, even more so than one with a zipper, in my opinion. Omitting that zipper also makes an envelope-back pillowcase much more comfortable, meaning that your decorative pillow can also perform its second most important job of Naptime Support Specialist. Or, if you have two decorative pillows, the third most important job of Footrest.

It’s very easy to make an envelope-back pillowcase from scratch, even if you’re a novice sewist. Here’s how!

Materials


To make an envelope-back pillowcase, you will need:

  • pillow form. I’m using a 16″x16″ pillow for this project, but here’s an example of a 26″x26″ pillowcase that I sewed from quilting cotton.
  • fabric. You’ll need three pieces of fabric approximately the size of your pillow plus 1.5″. You’ll cut two of those pieces down to size, so read through the instructions first if you have some smaller, scrappier pieces you want to use, and you’ll see how to calculate the exact yardage you need for your specific pillow.
  • bias tape. You need two pieces of approximately 1/4″ bias tape, each as long as your pillow plus 1.5″. Bias tape is SUPER easy to make from scratch, so you can perfectly match your pillowcase fabric, if you’d like.
  • measuring, pinning, cutting and sewing supplies.

Step 1: Measure and cut your pillowcase pieces.

Your pillow form should have a tag that gives its dimensions. If not, simply measure its length and width with a fabric measuring tape. If your pillow is rectangular instead of square like mine, you can still make an envelope back pillowcase for it; just decide which way you want the pillow oriented, and calculate, cut, and sew accordingly.

The front panel should measure one 1.5″ wider than the pillow form on both length and width if you want a snug fit like the one in these photos, and 2.5″ or even more if you want more ease. A looser fit is easier to stuff and change, but a snug fit looks nicer, in my opinion.

For my 16″x16″ pillow, my front panel is 17.5″x17.5″. Just between us, this made for a pillowcase that’s a little too snug, because I didn’t account for how fat that pillow form is! It still fits, but there’s some whiskering across the width and if it gets a lot of wear I’ll probably be mending around that applique in a few years. So let my mistake guide you, and take the fatness of your pillow form into account when deciding ease.

Each of the two back panels should be the same width as the front panel, but should be only about 2/3 of the length. The exactness of this measure isn’t terribly important, so I approximated, since 3 does not go neatly into 16. For my 16″x16″ pillow, then, each of my back panels are 11″x17.5″.

Step 2: Sew bias tape to the envelope edges of the back panels.


Sew bias tape across one width side of each of the back panel pieces, encasing the raw edge of each. These will be the edges that overlap to create the envelope closure.

Step 3: Sew the back panels to the front panel.


Whichever back panel piece you pin to the front panel first will be the outer panel once you’ve turned your finished pillowcase right sides out. I want my top panel on the outside, so I’m pinning it to my front panel first. Pin the panels right sides together.


Don’t start sewing yet! Instead, next pin the second back panel piece flush with the opposite end of the front panel, right sides together. Visually check the overlap of the envelope back to make sure you like it, and to make sure that the bias tape sides are at the overlap, NOT the far edges.

NOW you can sew!


Using a .5″ seam allowance, sew all the way around the pillowcase, sewing both back panels to the front panel. Backstitch over both ends of the overlap to reinforce them, since they’ll be pulled on whenever you change your pillowcase.

My favorite part of sewing this pillowcase is that I don’t have to leave a hole for turning, fuss with attaching a zipper, etc. It’s so quick and easy!

Clip the corners, turn right side out, press it smooth, and pop it on a pillow!


As you can see, you can do a lot of cute things with that front panel. Here, I appliqued the logo of my kid’s college onto the front panel fabric, but I’ve also pieced and quilted pillowcase fronts, and once I even used fabric markers to illustrate one. The possibilities are endless!

What are you going to put on the front of YOUR pillow?

P.S. Want to follow along with my craft projects, books I'm reading, road trips to weird old cemeteries, looming mid-life crisis, and other various adventures on the daily? Find me on my Craft Knife Facebook page!

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