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Foams

ILD (Indentation Load Deflection)

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Metric measuring foam firmness by quantifying force needed to indent material.

What: Metric measuring foam firmness by quantifying force needed to indent material.


Why: Helps compare models and set expectations during testing.


Tip: Soft ≈14–24 ILD; medium ≈25–34; firm ≈35+. Test feel in-store when possible.


Category: Foams


Tags: /lux-terms/

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