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9 mm vs 12 mm acoustic panel: a note

9 mm sheet runs 2000 GSM, 12 mm runs 2400 GSM. The acoustic difference is mid-frequency absorption, not headline NRC.

Harshil Goyal — Director, KARIKA
Plain acoustic sheets stacked in the studio

9 mm sheet runs 2000 GSM. 12 mm runs 2400 GSM. The acoustic difference is mid-frequency absorption, not headline NRC. Specify by the room, not by the catalogue line.

Studio note. 2025.

Tagged
  • thickness
  • GSM
  • panel specification

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Harshil Goyal
Director, KARIKA

Writes from the studio in Bangalore, where KARIKA designs and makes acoustic surfaces in 100% PET acoustic felt for architects and interior designers across India.

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