Does a plank ceiling provide better sound absorption than a linear ceiling system?

As an aluminum ceiling manufacturer supplying acoustic solutions in Dubai, Riyadh and Doha, we typically find that perforated plank ceilings—when paired with engineered cavity depth and absorptive backing—offer more controllable and tunable sound absorption across a broad frequency range than many narrow linear ceiling systems without perforation. Linear ceilings, if solid and shallow, can reflect sound and increase flutter echo, whereas structural perforation and a properly specified mineral or fibrous backing behind plank panels deliver predictable NRC (Noise Reduction Coefficient) values and targeted attenuation of mid and high frequencies needed in open-plan offices, conference rooms and cinemas. The cavity depth behind the plank plays a major role for low-frequency performance; deeper cavities with Helmholtz or membrane liners can extend absorption downwards, useful in large atriums like those in Cairo or major hotel ballrooms in Abu Dhabi. Linear systems that incorporate open reveals or absorbent infills can approach similar performance, but they typically require more complex detailing to avoid gaps that degrade acoustic continuity. For projects where speech intelligibility is crucial—call centers in Kuwait City or lecture halls in Beirut—perforated plank ceilings offer the most reliable path to meeting acoustic criteria while providing clean integration with lighting and HVAC.