high density poly foam

When a cushion needs to hold its shape for years, high density poly foam is the go-to choice. This dense polyurethane foam supports weight evenly, resists flattening, and gives seats, benches, and headboards a clean, tailored look that softer fillers can't match.

Why Choose High Density Foam?

Density describes how much foam material is packed into each cubic foot. More material generally means better durability and less sagging over time, which makes it a smart pick for furniture that sees daily use.

Popular Uses

• Sofa and chair seat cushion foam replacements
• Window seats and banquettes
• Dining chair pads and bench seats
• Upholstered headboards and ottomans

What to Look For

Consider thickness, firmness, and the dimensions of your project. Firm foam for seating feels supportive under regular use, while slightly softer foam suits seat backs and pillows. Wrapping your foam in polyester batting rounds the edges and helps your fabric fit smoothly.

Find the Right Foam for Your Project

Ready to rebuild a tired cushion or start a new upholstery piece? Browse our selection of upholstery foam and cushion foam below, and choose the size and firmness that fit your plans.