Replacing the Foam Inside Your Sofa Cushions

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Replacing the foam inside your sofa cushions is a simple process that can greatly improve the comfort and support of your furniture. Here are the steps to do it:

1. Measure the dimensions of your cushions to ensure you purchase the correct size foam.

2. Remove the old foam from the cushion covers and clean them if necessary.

3. Purchase new foam inserts that match the dimensions of your cushions.

4. Insert the new foam into the cushion covers, making sure it fits snugly.

5. Zip up the cushion covers and fluff them to evenly distribute the foam.

By following these steps, you can easily replace the foam inside your sofa cushions and enjoy a more comfortable seating experience.


If your sofa cushions are starting to sag or become lumpy, but the fabric and frame are still in good condition, replacing the foam inside the cushions can give your sofa a refreshed look. To do this, you’ll need to determine the size of foam required for each cushion and purchase high-density foam specifically designed for furniture cushions. If your sofa’s back cushions have zippers, you can easily replace the foam in those as well.

Step 1

Begin by removing the cushions from the sofa and unzipping them. If possible, turn the fabric inside out as this will make it easier to remove the cushion. In the case of cushions that are attached to the sofa frame, such as back cushions, carefully pull out the stuffing.

Step 2

Next, peel away any batting or fabric that is wrapped around the foam cushions. Set this aside as it will be used later to wrap the replacement foam pieces.

Step 3

Measure the length, width, and thickness of each foam cushion. Add an additional inch to each measurement so that the foam properly fills the cushion cover. If your cushion is not square or rectangular, such as a T-shape, measure the longest and widest parts of the cushion. Purchase a piece of high-density cushion foam that is large enough to be cut down to the appropriate size and shape for all of your cushions.

Step 4

Create a pattern for each foam piece needed. Lay the new foam on a hard work surface and place the old foam cushions on top. Use a marking pen to trace around each cushion onto the new foam, making the outline approximately 1 inch larger than the cushion on all sides.

Step 5

Using a utility knife or electric carving knife, carefully cut out the foam pieces. Take care not to damage the work surface underneath.

Step 6

Wrap each new foam piece with the batting or fabric that was removed from the old foam. Insert each wrapped piece into its corresponding cushion cover. Zip up the cushions and place them back onto the sofa.

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