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Cushion Cover Pattern

Customize Size

Back Envelope Opening

cushion cover pattern

Cushion Cover

removable for washing

for pet bed, baby changing table, & other rectangular or square cushions

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Custom Fit Your Cushion Cover

These instructions will make a perfect fitting cushion cover, with mitered corners and envelope back opening.

Use to cover any square or rectangular cushion. This happy pup got a new cushion for his carrier. Made of flannel, he loves the cover's soft feel.

Adjust instructions to make any size you need.

Supplies Needed For Cushion Cover

Fabric & Foam
One rectangular cushion (or piece of foam) to fit your needs
Enough fabric to cover your cushion (see "Make A Pattern" below). Lay out your pattern pieces to determine amount of fabric required. NOTE: Pre-wash and dry your fabric.

thread to match background of fabric
large sewing ruler
rotary cutter with cutting mat (or scissors)


If you plan to launder your fabric, pre-wash and dry before using.

Make A Pattern For Your Cover

Measure the length, width and thickness of your cushion. NOTE: Use a 1/4" seam allowance. In our example, the length is 20.5", the width is 12.5" and the thickness is 2".

measure for cushion cover Cushion Cover Top
Measure the length of the cushion. Add the thickness of cushion. For example, if the cushion is 2" thick, add 2" to the length. Add another 1/2" for a seam allowance on each end. Measure the width of the cushion. Add the thickness plus 1/2" for seam allowances. In our example our top pattern piece measured 15" x 23" (width = 12.5" + 2" + .5"; length = 20.5" + 2" + .5"). Now you know why sewing teachers are often math teachers. 

Cushion Cover Back
The back is made up of two pieces. The width is the same as the top piece. For the length, we will use the measurement of the top length, and adjust it a bit. Add 3" for overlap plus 1.5" for hems. In our example our overall length of the back was 27.5". Cut that piece into two pieces, so that the cut is made several inches from one end (in our example we made our cut 7.5" from one end).  

Sewing Instructions

pet cushion sewing pattern Hem Back Pieces
Turn under one edge of both back pieces 1/4". Press. Turn under another 1.5". Press. Topstitch hem.

Sew Back to Front
Place the front piece on a flat surface, right side up. Place one of the small back piece on top of the front piece, wrong side up. Place it so that unhemmed edge lines up with the top edge of the front, and the hemmed edge is toward the bottom. Place the second back piece on top of the other two pieces, wrong side up. Place it so that the unhemmed edge is lined up with the bottom edge of the front, and the hemmed edge is toward the top. Stitch around all four sides. Refer to drawing.

miter cushion corners Miter The Corners
Pull out the corners so that the seam runs straight down from the point. Draw a line perpendicular from the stitching, in a length equal to the thickness of the cushion. For example, we drew our line 2" long. For placement of the line, use a ruler and place the line at whatever distance from the point you need to be to make the line the correct length. Stitch on the line. Refer to the image featuring the miter seam. Trim excess fabric so the seam is 1/4".

Turn bag right side out and place cushion inside.

miter cushion corners Alternate Miter Method
Another method for creating a miter is to cut square notches from the lower sides after the side seams have been stitched. Then the open edges are lined up and stitched. To see this method, go to: Lounge Cover Pattern - scroll down the the section on creating a mitered corner.

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