How to Make a Rectangular Cushion

Written by kathryn hatashita-lee
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How to Make a Rectangular Cushion
A rectangular cushion made of durable material can suit an outdoor bench. (bank image by Ideen from

A rectangular cushion can add an appealing focal point on a sofa or armchair. Sewing a cushion with the variety of fabrics available can help coordinate your furniture with the room's decor. This comfortable addition can use as much padding as needed for a full or slim look. A lining bag that holds the foam pad within the cushion can make laundering easy.

Skill level:

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Things you need

  • Paper
  • Pencil
  • Ruler
  • Fabric
  • Straight pins
  • Scissors
  • Cotton or muslin fabric for lining
  • Thread
  • Foam pad
  • Needle for hand-sewing

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  1. 1

    Measure and mark on the paper the desired dimensions of the rectangular cushion with a pencil and ruler. Add a 5/8-inch seam allowance on all four sides. Cut out the paper pattern.

  2. 2

    Take the pattern to the couch or other furniture to check if the size and proportions are correct. Make any adjustments to the paper pattern before cutting the fabric.

  3. 3

    Fold the pre-shrunk fabric right-sides together. Pin along the fabric edges.

  4. 4

    Pin the paper pattern to the fabric. Cut the two fabric rectangles with scissors.

  1. 1

    Using a straight stitch, sew 5/8 inch from all four edges.

  2. 2

    Finish stitching by leaving an opening 5 inches wide to allow the insertion of the lining bag and foam pad. Trim the four corners to reduce fabric bulk.

  3. 3

    Turn the cushion right-side out. The cushion should resemble a rectangle.

  1. 1

    Place the paper pattern on the folded pre-shrunk lining fabric.

  2. 2

    Pin the pattern to the lining.

  3. 3

    Cut the lining according to the pattern outline. Sew the two pieces of lining together with a 5/8-inch seam allowance as in the steps for the fabric rectangle. Leave an opening in the lining.

  4. 4

    Insert the lining into the opening of the fabric cushion. Align the opening of the lining with the opening of the cushion. The lining rectangle stays inside the fabric rectangle.

  5. 5

    Cut the foam pad to fit the interior of the lining bag, if necessary.

  6. 6

    Insert the foam pad into the opening of the lining bag.

  1. 1

    Hand-sew the lining opening closed with a hand-sewing needle and thread.

  2. 2

    Adjust the lining bag and the cushion fabric to cover the foam pad smoothly.

  3. 3

    Hand-sew the cushion opening closed with small stitches.

Tips and warnings

  • Sew hook-and-loop closure tape or snap-fastener tape to the openings of both the lining and cushion within the seam allowances to allow easy removal of the foam pad.
  • If the lining bag shifts too much, try tacking the two rectangles together at the corners with small hand stitches in the seams.

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