Home / Sofa & Upholstery Cushion Foam
A sofa with a good frame and tired cushions doesn't need replacing — it needs new foam. It's usually the cheaper option, and it keeps a perfectly good frame out of a skip.
Match the original cushion's density where the feel was right, or go firmer if the old foam had gone soft and saggy. A stockinette cover helps the new foam slide back into an existing cushion cover without snagging.
Replace the foam, not the sofa.
Spec guide
Measure the old cushion foam directly if you still have it — width, length and thickness — and match density to how firm or soft it originally felt.
Spec this in the builder| Detail | Guidance | Typical |
|---|---|---|
| Density | Match the feel you want to keep or improve | 25–35kg/m³ |
| Thickness | Match the original cushion depth | measure old foam |
| Cover | Stockinette helps foam slide into existing covers | +£2 |
| Shape | Rectangle or rounded-corner for most cushions | in spec builder |