Material / Product Type Location Absorption Coefficients (Estimated) NRC Notes

Simplicity White 4×16 Glossy Ceramic Tile Glazed Tile Walls / Splashback 0.01–0.02 across all frequencies 0.00–0.05 Very hard reflective surface, negligible absorption.

Oak Putty Cabinet Finish (Superior Cabinets) Wood Veneer / Solid Wood Cabinetry ~0.10–0.15 ~0.10–0.15 Wood provides slight absorption; mostly reflective.

Maharam Gemma Multi – Copperplate Upholstery Fabric Furniture upholstery / Soft seating 0.40–0.90 at mid–high frequencies (depending on mounting) ~0.70 (typical fabric NRC) Good absorber when placed on soft furniture.

Benjamin Moore Sonnet (AF-55) Paint Paint (on drywall) Walls ~0.05 ~0.05 Painted gypsum is mostly reflective with minimal absorption.

Benjamin Moore Iron Mountain (2134-30) Paint Paint (on drywall) Accent wall ~0.05 ~0.05 Same as above; reflective.

Bianco Carrara 12×24 Honed Marble Tile Marble Tile Walls / Floor 0.01–0.02 0.00–0.05 Very low absorption; highly reflective, similar to ceramic tile.

Maharam Arlo – Arpeggio Upholstery Fabric Seating / Soft surfaces 0.40–0.90 mid–high frequencies ~0.70 Soft, porous, effective mid–high frequency absorber.

Luxury Vinyl – Montlisse (AquaFix SPC Grand Cru) Vinyl Plank Flooring Floor 0.02–0.05 0.02–0.05 Hard reflective flooring; STC depends on floor assembly beneath.