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Echostop® is a perforated plasterboard designed to create a decorative finish, while providing a high level of sound absorption to the space. It is suitable for full ceiling installation or feature panels on internal walls or ceilings. Created for sound absorption treatment, Echostop® is available in 5 stylish designs with either slotted, square or round perforations to suit multiple design applications.

Echostop® contains 10% recycled gypsum and is encased in a 100% recycled paper. The back of Echostop® has a black acoustic fabric.

Thickness 12.5mm
Patterns Slotted  Hole 





101.5mm x 5mm  

(4 Grid Patterns/sheet) 

82mm x 5mm  

(8 Block Patterns/sheet) 

13.5mm 20×20 holes  

(4 Block Patterns/sheet) 

6mm 33×33 holes  

(4 Block Patterns / sheet) 

12mm 20×20 holes  

(8 Block Patterns / sheet)

Edge Profile Recessed edge
Sheet Size Refer to “Plasterboard Range  Availability” (Knaufapac.com)
Paper Colour Buff liner paper face/Black acoustic  fabric backing
Open Area 6mm – 8.5%, 12mm – 16%,  

13.5mm – 16%, 82mm – 11%,  101.5mm – 11%

Mass 10.0kg/m2 nominal
Fire Hazard  


Group 1 – in accordance with BCA  Specification C1.10a Fire Hazard  Properties – Floors, Walls and  Ceilings.
Combustibility Non Combustible material as  defined in BCA Deem-to-Satisfy  Provisions C1.12
VOC Less than 0.5mg/m3 TVOC