upholstery foam 55 ild

Why Choose Upholstery Foam 55 ILD?

When a seat needs to hold its shape through daily use, upholstery foam 55 ILD is one of the firmest options you can reach for. ILD stands for indentation load deflection. It measures how many pounds of force it takes to compress foam by 25 percent. At a rating of 55, this extra firm upholstery foam resists sagging and bottoming out. That makes it a dependable base for cushions that see heavy wear.

Where Firm Foam Works Best

• Dining chair and bar stool seats
• Banquettes, window seats and foam for bench seats
• Boat, RV and vehicle seating
• Thin pads where softer foam would flatten quickly

What to Look For

Match the thickness to your project. Thinner seats benefit most from a firm ILD foam rating. Deeper cushions can feel stiff unless you add a softer topper or a wrap of batting. Check foam density as well as ILD, since high density foam for cushions generally holds up longer. For outdoor or marine use, confirm that the foam is made to handle moisture.

Shop Firm Seat Cushion Foam

Ready to rebuild a worn seat or start something new? Browse the replacement cushion foam options below and choose the size and thickness that fit your piece.