STC Audio Comparison: What Does Each STC Rating Sound Like?
Same music, same volume, eight common residential wall assemblies from STC 0 to STC 48. Tap a wall to hear what leaks into the next room, and switch walls mid-song to compare instantly.
Improve the STC of Your Walls
Standard 1/2" drywall is cost-effective but marginal for sound, and fiberglass batting or mineral wool are mainly thermal insulation that add only a point or two. For sensitive rooms like master bedrooms, bathrooms, in-home studios and home offices, these changes make the real difference.
1
Space the Studs Further ApartWider stud spacing reduces the paths that carry vibration from one side of the wall to the other.2
Use Metal Studs Instead of WoodLightweight metal studs flex more than wood, which decouples the two faces of the wall.3
Add a Soundproofing MembraneThe biggest single gain. A basic wall at about STC 30 reaches STC 46 and beyond with a membrane on each side.Wall Blokker · Wall Blokker PROFind the Right STC for Your Project
Pick the rating your rooms need, see what your wall delivers today, and learn how to close the gap.
Determine Your Target STCBedrooms, offices and media rooms each need a different rating. See what yours should be.Target STC ratings →
Calculate Your Wall’s STCBuild your wall layer by layer, see its rating, and get a Wall Blokker recommendation.Open the STC calculator →
Learn How to Soundproof a WallThe step-by-step method for reaching the STC rating you need.How to soundproof a wall →