How to Make a Box Cushion Cover

    by Rebekah Martin

    About the Author

    Rebekah Martin is a freelance writer and tutor. Her work has appeared in various online publications. She holds a Bachelor of Arts in journalism from Mississippi College. Martin teaches her young children at home and also teaches Sunday School to preschoolers.


    Box cushions are square or rectangular and typically sit on top of a bench, chair or window seat. The cushion is made from foam cut to the correct size and covered in fabric to match the decor. The covers are simple to make, and can easily be changed with the change of seasons, or change of decor. You do not need a lot of sewing know-how to create these simple covers for box cushions.

    Things You'll Need

    • Fabric
    • Foam cushion
    • Measuring tape
    • Scissors
    • Pins
    • Thread
    • Sewing machine
    • Hand-sewing needle

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    Measure the area where the cushion will be used.

    Cut a piece of foam to fit the space. Box cushions are typically 2 inches thick for a bench and 4 to 6 inches thick for a sofa, but this is arbitrary, you can use whatever thickness suits your design.

    Cut two pieces of fabric the same size as the top of the foam plus half an inch on all sides.

    Cut one piece of fabric long enough to wrap around the entire cushion. This is equal to twice the width and twice the length of the cushion, plus 1 inch. Cut this boxing strip width equal to the thickness of the foam plus 1 inch. This is the boxing.

    Lay the top piece of fabric on a table, right side facing up.

    Pin the long edge of the box fabric to the perimeter of the top piece, right sides together. Align the raw edges.

    Sew the two pieces together using a half-inch seam.

    Sew the bottom cushion piece to the remaining long edge of the box, making sure to put the right sides of the fabric together. Leave one of the four sides free for the cushion insertion.

    Trim the seams and turn the fabric right side out.

    Push the cushion into the cover, making sure the foam fills all of the corners. Hand sew the opening shut.

    • Add buttons or tufting to the top of the cushion if prefer more visual interest.
    • Unless the foam is rated for upholstery, consider it craft foam and unsuitable for a durable seat cushion.