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A: Bare floor = min. STC 54 with G556 or H505 on 10" o.c. C-Joist; attainable value over a range of floor covering:

The following acoustic ranges of STC/IIC values are available.

  • Code minimum STC 50 / IIC 50 and higher
  • Premium STC 55 / IIC 55 and higher
  • Deluxe STC60 / IIC 60 and higher