upholstery foam 3x24x80

Why Upholstery Foam 3x24x80 Is So Versatile

A sheet of upholstery foam 3x24x80 gives you a long, generous slab that is 3 inches thick, 24 inches wide and 80 inches long. That size suits window seats, long benches, daybeds, banquettes and floor pads. You can use it whole or trim it to fit, so it makes a practical starting point for reupholstery and DIY cushion projects.

What to Look for Before You Buy

Density and Firmness

Density affects how well foam holds its shape over time, while firmness controls how it feels when you sit. For seating that gets daily use, high density upholstery foam is usually the better choice. Softer foam works well for back cushions and lounging pads.

Thickness and Comfort

Three inches of foam offers solid support for most bench cushion foam and seat pad projects. If you want extra plushness, wrap the foam in polyester batting before you add your fabric cover.

Cutting and Covering

• Mark your measurements and cut with an electric carving knife for clean edges.
• Add about half an inch to your cover pattern for a snug fit.
• Choose a durable upholstery fabric for high-traffic seating.

Find Your Foam

Ready to start? Browse the foam cushion slabs listed below and choose the option that fits your project.