Good Firm 3800 Poly Foam, 108'' sheets
Firm Poly is an excellent choice for residential seating. Ideal for camper cushions, and a very good foam for marine use. Reacts well to the sun. Easily cut with sharp knife, scissors, or electric carving knife.
Not fire retardant. Density 1.5 - Compression 44 (ILD)
Also available in 75'' length sheets.