A foam firmness measure. Lower numbers = softer foam; higher numbers = firmer. Quality seat cushions typically use 30–45 ILD foam.
In Practice
At Extra Touch Upholstery, ild (indentation load deflection) is part of the standard vocabulary of every commission — discussed openly with clients during the specification phase and documented in the written scope before any work begins. Whether you are restoring a family heirloom, commissioning a new custom piece, or refreshing a Lake Tahoe estate, this is the level of detail you should expect from a serious atelier.
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