CONTINUOUS SOUND ABSORBING PERFORATIONS FOR A MONOLITHIC APPEARANCE Product Details: Perforation: 8mm – 12mm – 50mm o.c. Panel Thickness: 1/2″, 12.5mm Non-Woven Fabric: Charcoal Gray Open Rate: 13.1% NRC: Up to .85 Board Sizes: 900 mm x 2700 mm 1200 mmx 2400 mm Product Data Sheet: Sonus Composite 8-12/50