The STC rating requirement is guided by ANSI standard S12.60-2002, which requires partition assemblies (including doors, walls, ceilings and floors) to have a specified STC rating based on the noise level coming from the adjacent space. In many cases, eac

The STC rating requirement is guided by ANSI standard S12.60-2002, which requires partition assemblies (including doors, walls, ceilings and floors) to have a specified STC rating based on the noise level coming from the adjacent space. In many cases, each wall in a classroom will have a different STC rating requirement due to different adjacent spaces.