How to Sew an Envelope Cushion Cover (Any Size!) + Optional Ruffles and Appliqué Letters

How to Sew an Envelope Cushion Cover (Any Size!) + Optional Ruffles and Appliqué Letters

This cushion cover has a simple envelope-style back with no zip! Just overlap the back panels and slide in your cushion! You can also add ruffles for a playful touch or personalise it with a word or name using appliqué letters.

Click the link below for all of my sewing patterns:

Groovy Ooze Sewing Patterns

Materials Needed:

  • Fabric (amount depends on cushion size)
  • Cushion insert (any size)
  • Matching thread
  • Scissors or rotary cutter
  • Clips or pins
  • Point turner
  • Iron
  • Sewing machine (or needle if hand sewing)
  • Optional: Bondaweb (or similar fusible web), fabric scraps for letters, paper & pencil for templates

Below I have a link to my recommended sewing supplies on my Amazon Storefront:

Studio Favourites - Amazon Storefront

Please note - This is an affiliate link which may earn me a small commission on any products purchased using this link. This is at no extra cost to you. I can’t thank you enough for your support!

Let’s get making!!

1. Measure Your Cushion Insert

  • W = width of the cushion
  • H = height of the cushion
  • Once you have those measurements, add 1” to each.

Example: My cushion measurements were: W = 18” H = 18” + 1” to both W and H gives us a final measurement of W = 19” H = 19” 

2. Cut The Fabric

  • Front Panel - Cut one piece W and H the measurement you just worked out. 

Example: Mine is W=19” H=19”

  • Back Panels - Cut two pieces W x (H ÷ 2 + 5”) This adds overlap and seam allowance.

Example: Mine is W 19” x (H 19” ÷ 2 = 9.5” + 5” = 14.5”) So my two back panels measured W 19” x H 14.5” 

3. Creating The Ruffles (optional) 

  • To work out the length of your ruffled strip: (W + W + H + H) x 1.5 

Example: Mine is (19”+19”+19”+19”=76”) x 1.5 = 114” 

Tip: If you don’t have a piece of fabric long enough, you can sew multiple pieces of fabric together to create one long strip.

  • Width approx 6” (you can adjust based on how full you want the ruffle)
  • Fold the fabric in half lengthwise, right sides together.

  • With a 1/4” seam allowance, sew down the short edge of each side.
  • Trim the seam allowance and turn the fabric right side out.

  • Give the whole strip of fabric a really good iron.

  • Set your sewing machine to the longest stitch length and the highest tension setting. Using these settings will cause the fabric to gather (which is exactly what we want!)
  • Sew a straight line from one end to the other 1/8” from the raw edge. Do NOT backstitch. 

4. Attaching The Ruffles

  • You can gently pull on the bobbin thread to gather the fabric more if needed until the length of the ruffles match the width of the of the front panel.

  • Clip or pin the ruffled strip around all edges of the front panel.

  • Use a baste stitch to hold the ruffles in place. 
  • Overlock or use a zig zag stitch to finish the edges.

5. Add Appliqué Letters (optional)

  • Draw or print the word you want to use (mirror it if needed).
  • Trace the letters onto the paper side of the Bondaweb.

  • Iron the Bondaweb onto the wrong side of your fabric scraps.

  • Cut out the letters.

  • Peel off the paper backing and place them on the front panel where you’d like them.

  • Iron in place to fuse.

  • Sew around each letter using a straight stitch or zigzag.

6. Hem the Back Panels

On one long edge of each back panel:

  • Fold the edge in by 1/2”, then again by 1/2” to enclose the raw edge.

  • Press and sew to hem.

  • Overlock or use a zig zag stitch to finish the other three edges.

 

7. Assemble the Cushion Cover

  • Lay the front panel right side up.
  • Place one back panel right side down on top, lining up the raw edge with one side.

  • Place the second back panel right side down, overlapping the first panel.
  • Pin or clip all around the edges.

  • Sew around all four sides with a 1/2” seam allowance. 

  • If you added a ruffle, use your ruffle basting as a guide.
  • Reinforce the opening by backstitching a couple of times.

 

8. Turn and Finish 

  • Turn the cushion cover right side out through the envelope opening.

  • Use a point turner or something with a pointy end to push out the corners.
  • Give it a good iron.
  • Insert your cushion and you’re done!

Don’t forget to tag me in your groovy creations! @GroovyOoze on instagram! 

Below is a link to all of my sewing patterns. Thank you so much for your support! 

All Groovy Ooze Sewing Patterns 

Here’s another cushion I made:

 

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.