seat cushion fill

The right seat cushion fill decides whether a chair feels supportive for hours or flattens after a few weeks. Whether you're sewing new dining chair pads, refreshing a window seat or rebuilding patio cushions, the filling inside matters as much as the fabric outside.

Choosing the Best Filling for Your Seat

Start by thinking about how the cushion will be used, how firm you want it and where it will live.

Foam for Shape and Support

Cushion foam holds a clean, tailored edge and is a favorite for benches, banquettes and kitchen chairs. Higher-density foam generally resists sagging better on seats that see daily use.

Fiberfill and Batting for Softness

Polyester fiberfill gives a plush, relaxed feel to loose chair pads and floor cushions. Wrapping foam in upholstery batting softens hard corners and helps your cover fit smoothly.

Outdoor-Ready Options

For patio and boat seating, look for outdoor cushion foam designed to drain water and dry quickly, which helps limit mildew.

Shop Our Seat Cushion Filling

Measure your seat, decide on thickness and firmness, then browse the foam, fiberfill and batting options listed below to find the perfect match for your project.