Rectangular Pillow Kit Assembly Tutorial

  • Skill level: Beginner
  • Time Required: 30-60 minutes depending on skill level
  • Required items: thread, pillow insert
  • Recommended tools: sewing machine, iron, ironing board, pressing cloth, scissors/rotary cutter, point turner

This is a visual supplement to the instructions included with any of our 14-16″ x 26-28″ rectangular pillow kits. The Fancy Floral Pillow Kit #3 is the one shown here. You can purchase this kit here.

Included with all of our pillow kits is a set of instructions for assembly with an envelope closure on the back. We try to make construction of our kits as simple as possible, making this a great project for a beginner. If you are looking for a more challenging project, our kits can easily be modified to include more complicated elements. Please check our Tutorials page for some ideas on how to add extra embellishment or directions on alternate closure options.

Notes before starting:

  • The pillow kit can be assembled to properly fit any rectangular pillow form insert from 14-16″H x 26-28″W. For this tutorial we will be using a 16″x26″ feather filled FJADRAR insert available from IKEA.
  • The unfinished pillow front size is 17″x29″, the seam allowance needed will depend on your insert size. Common insert sizes are 16″x26″ or 14″x28″, please use seam allowances as noted below:
    • For a 16″x26″ insert, use a .5″ seam allowance on the long edges, and a 1.5″ seam allowance on the short edges.
    • For a 14″x28″ insert, use 1.5″ seam allowance on the long edges, and a .5″ seam allowance on the short edges.
  • Spoonflower recommends that all fabrics be washed before use. For this tutorial we did not wash the fabric before beginning. Some shrinkage will occur during washing, due to the squishable nature of a pillow this should not adversely effect the design.
  • Before sewing, and through assembly you will need to press your fabric. Press on the unprinted side or use a pressing cloth to avoid damaging the printed design.
  • For this tutorial our kit was printed on Linen-Cotton Canvas, our preferred fabric. For this size of pillow kit, a fabric 54″ or wider must be chosen or the back pieces will not be included.
  • Some changes to the printed kit were made after the one pictured here. These include a correction to the instructions panel, a decrease in back panel sizes to allow easier insertion of the pillow insert, and an increase in the optional embellishment strip panel size.
  • This pillow was constructed with the addition of optional ties at the corners. Find directions for how to add these here.


  1. Cut all pieces out on dashed lines.

    We recommend a rotary cutter and straight edge to get the cleanest and straightest cuts, but a scissors will work just as work.


    Make sure to cut out the front and both back pieces. We’ve also cut out the optional tag and the optional embellishment piece. Check out the tutorials page for embellishment ideas.

  2. Fold back pieces along fold line, press. Topstitch in place (approx. 1.75″ from fold), or for a cleaner look press in place with fusible webbing.


    For this pillow we are using a fusible webbing to secure the folded edges of the back pieces. Place the webbing between the two layers of the folded fabric. Follow the instructions provided with the webbing to press in place. Bottom right: The fold line for the back pieces on our pillow kits come pre-marked in the seam allowance. If you would prefer to topstitch the folds in place, see our Square Pillow Kit Tutorial for more information.

  3. Baste back pieces together (folded edges will overlap, right sides facing the same way), so that the outside edge is equal size to the front.


    The easiest way to get the back pieces to match the size of the front is to overlay them before pinning, matching all the outside edges. Pin the two back pieces together, including across the folds to make them easier to handle while basting. Baste the two back pieces together along the top and bottom edges within the seam allowance.

  4. Pin or clip front and back together, right sides facing. Overlapping folds of the back panel should be oriented vertically (top-to-bottom).


    Top: For our pillow insert size (16×26) we would have a seam allowance of .5″ along the long sides, and a seam allowance of 1.5″ along the long edges. To keep the seam allowance consistent along all four edges we choose to trim 1″ off each side of both the front and back panels. This left us with an overall size of 17″ x 27″ before stitching. Bottom left: Place front and back pieces together with right sides facing. We choose to add ties to the corners of this pillow, find instructions for this embellishment here. Bottom right: Pin or clip front and back pieces together to make sewing easier.

  5. Stitch front and back together, using appropriate seam allowances.


    Since we trimmed our pieces to size for a consistent seam allowance, we were able to use a .5″ seam allowance around the entire pillow.

  6. Trim seam allowances, clip corners. Optional: Attach included tag to seam allowance.


    Top: Diagonally clip the corners without cutting the seam thread for a neater corner once the pillow is turned. Bottom left: Trim the excess seam allowance. This can be done with a standard scissors or a pinking shears; alternately this could be finished with a serged or overlocked stitch, but it is not necessary. Bottom right: Attach the tag to the seam allowance if desired. For more detail on attaching the tag, see our Square Pillow Kit Tutorial.

  7. Turn right side out. Press.


    Use a point turner get a neat point in the corners and to smooth the turned seams. A chopstick is a good alternative to a point turner. Lightly press the edges of the pillow for a neater seam. Optional corner ties are shown, find out how to add these here.

  8. Insert pillow form, folded back edges will overlap to enclose pillow.


    Insert pillow form of your choice through the envelop enclosure on the back of the pillow. For this pillow we used the FJADRAR feather filled insert available from IKEA.

  9. Enjoy your new pillow!


    Enjoy your finished pillow. Shown here with optional corner ties.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s