Ranking Finished Flooring Surfaces
In general, Hard Surface flooring, those with greater mass density (weight) provide better sound transmission values (STC), that is, they are better at reducing ambient sound between rooms. And Soft Surface flooring materials provide better impact sound reduction or IIC values.
Hard Surface Flooring
Natural Stone and Marble
Ceramic, Quarry & Porcelain Tiles
Laminates with foam backing
Vinyl with foam backing
Luxury Vinyl Tile & Planks