How To Sew A Flanged Pillow Sham With Mitered Corners

Behind each great pillow arrangement is a pretty pillow sham, isn’t it? Flanged pillow shams with mitered corners can make your arrangements look better than ever. Good news is that you can make such beautiful and useful pillow shams all by yourself.

If you want a clean and polished look, mitered corners are the way to go for your pillow shams. The process is pretty simple: you attach the flange, make the mitered corners, and get everything assembled.

All you need to know is how to go about the steps without making any major or minor mistakes along the way. And you have come to the right place to know all about the correct way to create such pillow shams. So, let’s get started without further ado.

How to Sew a Flanged Pillow Sham with Mitered Corners?

You need to start by cutting the flange and pillow fabrics. After attaching the flange, you can move on to making the mitered corners. Next, get the seams folded on the back pieces.

You can now start sewing the seams and cut off the extra thread after you are done. Finally, you can assemble all the things together and sew the back and front of the pillow sham. Now, insert the pillow foam and your work is done.

Your pretty pillow is now ready to adorn the bedroom, kids’ room, or living room.

Procedure for Sewing a Flanged Pillow Sham with Mitered Corners

You need to start by gathering all the supplies you will need. Here is a list:

  • Flange Fabric
  • Pillow fabric
  • Pillow form (about 18×18 inches)
  • Sewing Machine
  • Iron
  • Thread
  • Pencil
  • Pins
  • Ruler
  • Scissors


You should always measure your pillow before starting the project. Keep in mind that an artfully done mitered edge should look almost like a picture frame.

So, if the pillow is found to be too small or big, the pillow sham will not look as perfect as you want it to be.

Also, the measurements given here are the ones that we have used for our work. You might need to add to the numbers or reduce them in order to suit your requirements.

Additionally, remember that it is always better to do such intricate work using a sewing machine.

Steps To Sew a Flanged Pillow Sham with Mitered Corners

Step 1: Cutting the Flange and Pillow Fabric

Take your pillow fabric and lay it out straight on top of your workstation. Now, use your pencil and ruler to measure and point out a 19 x 19” square on the fabric. You will need two 12 x 19” rectangles for the back of the pillow so have that measured on the fabric, too.

Then, get the flange fabric and lay that out on your workstation. Use your pencil and ruler to mark eight rectangles measures 3 x 24”

Finally, cut both these materials with your scissors by following the marks that you have made.

Step 2: Marking the Front Piece

Take the front piece of the pillow (i.e., 19 x 19” square) and on its wrong side, mark every corner one-half inch from the fabric’s edge.

The four dots you have made will help you while attaching the flange.

Step 3: Attaching Your Flange

Get the flange fabric you had previously cut and the front part of the pillow sham. Now, get the flange folded in half and finger press to that a line is created. Keep doing this step for each of the eight pieces and on the pillow fabric.

Lay the front part of the sham over your workstation with the right side up. Then, along the edge, put one of the flange pieces with its wrong side up. Now, the right sides of both the fabric pieces are facing one another.

Can you see the creases you created earlier right at the center of the fabrics? Get them aligned together and secure the pieces of the fabric with pins.

Sew while keeping the flange at the bottom. And make the dots you created earlier (step two) be your guide on where to start and stop the stitches. Also, ensure that you line things up while sewing and keep the half-inch seam allowance.

Now, repeat until you have got the flanges attached on all sides.

Step 4: Making the Mitered Corners

The flange fabric will flap over one another and hang loosely on the corners of the sham. And now we will make the mitered corners.

Focus on a corner of the pillow front and fold the extra flange in a triangle. Now, press that with adequate pressure so that a line is clearly marked. Do the same with the other flange.

Get both the creases lined together with their right sides facing one another and secure that with pins. Next up, sew along the line and keep removing the pins along the way. If you can’t recognize the crease, mark it using a pencil.

Finally, trim the excess fabric while keeping ?” allowance.

Step 5: Folding the Seams on Your Back Pieces

Take the back pieces of the pillow. Then, fold a side of the fabric measuring nineteen inches and press that with an iron to let it lay neat and flat.

After this, fold that again for another ?” and iron out the crinkles to make things easy for you afterward. It will give you a clean finish while removing or inserting the pillow form from the sham.

Do this step on both the back pieces before moving on.

Step 6: Sewing the Seams and Assembling the Pieces

Get the wrong side up on the back piece and put a straight stitch along the edges of the fold you created in step five. The other 12 x 19 pieces of fabrics will go through the same process. Afterward, cut the extra threads.

Take the two back pieces and lay them on the working surface with their right sides up. Then, create a 19” square by getting the hemmed fabric edges to overlap. Pin the edges and start sewing.

The remaining flanges have to get attached and do the same thing with the mitered corners that you did with the front part. Go back to steps three and four.

Step 7: Sewing the Pillow Back and Front Together

Lay the back and front pieces together with their right sides facing one another. Get the edges securely pinned. Start sewing all around the edges and get the extra fabric and thread trimmed. Next, use an iron to press the outer edges.

Step 8: Inserting the Pillow Form

Your pillow sham is complete. Now, insert the 18 x 18” pillow form. All set to decorate!

Tips for Sewing a Flanged Pillow Sham with Mitered Corners

1. Choose your fabric carefully. Your best bet is to choose lightweight cotton that is easy to sew and maintain.

2. To make sewing easy for you, iron out the four pieces of flange lengthwise in half while letting the cut edges meet.

3. You need to be careful of the sizes before running your scissors through the fabrics. Measure each side of the pillow at least twice before you start cutting the fabric. There is no point in randomly cutting and wasting a perfectly fine material.

4. Though we have not marked the lines with pencils or chalks, you can obviously go ahead and do that if it feels more convenient to you.

What is The Right Pillow Size for Making Mitered Corners?

Miter joints are the kind of joints where two parts get beveled to join at a 45° angle to form a corner at a 90° angle. There is no right pillow size to make mitered corners. It is a decorative element that you can put in any pillow or cushion you will keep in your bedroom or living room.



I'm Jessica Flores, a professional fashion designer and an expert seamstress. Crafting has always been a deep-seated passion of mine, one that has flourished and evolved over the years. I've dedicated considerable time to both studying and practicing in the realm of fashion and sewing, amassing a wealth of experience and skills. It brings me great joy to share these insights and experiences with you all, hoping to inspire and foster a similar passion for the art of sewing.

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