Soundproof Floors

Good, better, best — at a glance

Each system builds on the one before it. Every material links to its product page, and each assembly automatically includes the seam tape and acoustic sealant the install needs.

Diagrams and project estimates

Good

Plywood, Super Pad, Carpet Top

Approx. IIC 55

The simplest impact-noise upgrade: a plywood subfloor topped with a Super Pad cushion under carpet. Fast to install over an existing floor and a real improvement on footfall noise.

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Better

Rockwool, Subfloor, Serenity Underlay, Double Set, Carpet Top

Approx. IIC 62

Adds Rockwool in the joist bays and a Serenity Ultimate rubber underlay with Double Set padding beneath the carpet — absorbing cavity noise and decoupling footfall from the structure.

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Best

Rockwool, Subfloor, Green Glue, Plywood, Serenity Underlay, Double Set, Hardwood Top

Approx. IIC 70+ / STC 60

Our deepest floor build: Rockwool cavity fill, a Green Glue damped plywood-on-subfloor sandwich, Serenity Ultimate underlay and Double Set padding under hardwood — mass, damping, and decoupling all working together.

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