19mm Knauf Plank Square Edge Acoustic Plasterboard 2400mm x 600mm

High-density acoustic plasterboard, measuring 19mm in thickness with a square edge, for reducing airborne sound transmission in separating walls and floors. Manufactured with a dense gypsum core, Knauf plank delivers substantial mass, which is essential for improving the acoustic performance of internal systems. As part of a multi-layer construction, it acts as a mass layer that increases sound insulation and contributes to quieter, more comfortable internal environments in residential, commercial, and public buildings. At 19mm thick, the board provides exceptional rigidity and sound-blocking performance, significantly outperforming standard plasterboard thicknesses. Its greater density also improves impact resistance, durability, and fire safety, making it a key component in high-performance acoustic partitions and separating floor systems.The square edge profile allows boards to butt together without a recess, making it suitable for textured finishes, direct decoration, or traditional jointing and plaster skim methods.