high density foam 1.8 lb
If your cushions go flat after a single season, high density foam 1.8 lb is the upgrade worth making. The number refers to density: the foam weighs about 1.8 pounds per cubic foot, a common benchmark for upholstery foam meant to hold its shape under everyday sitting.
What 1.8 lb Density Foam Means for Your Project
Density tells you how much material is packed into the foam, which plays a big role in how well it resists sagging over time. Firmness is a separate measurement, often listed as ILD, so check it before you buy. A soft, medium or firm feel can all start from the same density.
Popular Uses
- Dining chair and bench seat cushions
- Sofa and loveseat replacement cushion foam
- Window seats, banquettes and padded headboards
- RV and camper dinette cushions
What to Look For
Measure your frame or old cushion carefully, then compare the thickness, firmness rating and sheet size. For seating, firm upholstery foam usually gives better support. Wrapping high density cushion foam in polyester batting softens the edges and helps your fabric cover fit smoothly.
Find Your Foam
Ready to rebuild your seating? Browse the foam options below and pick the thickness and firmness that suit your next cushion project.
