Been researching sofas for days and every brand throws around different numbers. Realistically, what is the best foam density for sofa seats for everyday use?
For everyday sofa seats, the best foam density is 1.8–2.5 lbs/ft³ (about 28–40 kg/m³), offering the ideal balance of comfort, support, and durability.
Foam below 1.8 tends to sag and soften quickly, while densities above 2.5 feel firmer and are better suited for heavy commercial use.
For homes with kids, pets, or frequent daily use, high-resilience (HR) foam with an firmness rating of 35–45 can significantly extend the sofa’s lifespan.
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