How to Upholster Foam

Written by f.r.r. mallory
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How to Upholster Foam
Floor pillows. (young woman with pillows image by Daria Miroshnikova from

Foam is often upholstered to make cushions for indoor furniture like couches, outdoor patio furniture, for a window seat or floor pillows for extra seating. A large square foam cushion can be drawn up to a coffee table for creative dining seating or children can huddle on a cushion on the floor while watching a movie. Upholstered foam cushions are typically easy to make and versatile.

Skill level:
Moderately Easy

Things you need

  • Foam
  • Electric knife
  • Tape measure
  • Fabric
  • Scissors
  • Sewing Machine
  • Iron
  • Needle and thread

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  1. 1

    Cut the foam to the size you want with an electric knife.

  2. 2

    Measure the depth of the foam and the length of each side. Cut fabric one inch wider than the depth of the foam and four times the length of the sides plus one inch for seams. Fold the fabric in half and lay flat. Position the cushion over the fabric with 1/2-inch excess fabric on two sides. Cut the other two sides of the fabric with 1/2-inch excess for seams.

  3. 3

    Place the long strip face sides together. Starting in a corner, sew a 1/2-inch seam all the way around the large square. Place the long strip face sides together with the second square fabric. Start in a matching corner and sew around three sides of the square with a 1/2-inch seam. Turn the fabrics right side out and iron the seams.

  4. 4

    Insert the foam through the hole and adjust the foam until it is fitted in each corner. Hand sew a back stitch across the corner end, tucking the seams under. Hand sew along the open side with a back stitch until the entire cushion is closed.

Tips and warnings

  • There are many ways to dress up your cushions with buttons, piping, ribbons and more.

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