STC ratings measure how much sound a movable wall blocks. Higher numbers mean better sound control and more privacy.
Conversations can be heard and understood.
Best for multi-purpose spaces and low privacy areas.
Voices are audible but difficult to understand.
Common for offices, meeting rooms, classrooms, synagogues, and most event spaces.
Conversations are hard to understand through the wall.
Ideal for conference rooms, boardrooms, healthcare spaces, and simultaneous events.
Speech is barely noticeable.
Best for executive spaces and areas requiring the highest level of speech privacy.
Important: Sound Control Depends on the Entire Opening A high STC wall only performs properly when the entire opening is sealed correctly. Sound leaks through: Gaps around the wall Unsealed ceilings Poor floor seals Doors Windows HVAC openings Adjacent walls or construction Even one small unsealed area can dramatically reduce sound performance.
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