Thickness: 11 mm — thicker than many standard underlays, which means more cushion and softness underfoot. Material: PU (polyurethane) foam — resilient and supportive. Sound insulation: ~43 dB — reduces noise from footsteps. Thermal insulation: ~2.9 tog — helps keep the room warmer and can save a little on heating. Tredaire Granduro 11mm underlay is a thicker, cushioned carpet underlay that delivers:soft, cosy underfoot feelGood noise reductionAdded warmthSolid long-term performanceIt’s a higher-end foam underlay compared to basic thin foams — ideal if you want comfort and insulation, not just a barrier layer. Density: ~145 kg/m³ — reasonably dense for long-lasting performance. �leefloorstok.comRoll size: ~15 m² per roll. �leefloorstok.com
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