Do You Really Need Class A Acoustics Everywhere?
When we talk about acoustics, it’s easy to think the answer is just to cover every wall and ceiling with Class A acoustic panels—the best stuff you can get. But here’s the thing: acoustics always matter, but it’s not about drowning your space in the highest-rated materials. It’s about being smart with what you use and where you put it.
The first thing to understand is what Class A acoustics actually are. This usually refers to the highest level of sound absorption as defined by ISO 11654, a standard that categorises materials based on their ability to absorb sound. Class A materials typically have an αw (weighted sound absorption coefficient) of 0.90 or higher, meaning they absorb 90% or more of the sound energy that hits them.
People often assume Class A is the only way to go because it’s top of the line for sound absorption. But packing a room full of it can actually make the space feel too quiet, almost lifeless. That’s not the kind of calm most people want—it can feel a bit eerie and uncomfortable.
Good acoustics are really about finding balance. If you’ve got a lively breakout area or a social zone, too much absorption can suck the energy out of the room. But if you’re talking about a meeting room or a space where people need to focus, then stronger acoustic control makes sense.
Beyond performance, there’s the look and feel of a space to think about. High-performance acoustic panels can also be bulky or visually dominant. In spaces where aesthetics are a priority, designers might prefer more discreet solutions that balance form and function, even if they don’t meet Class A standards.
Class A treatments are also often more expensive due to their high performance. In many cases, a combination of Class B or C treatments, which still offer good absorption, can achieve the desired acoustic comfort at a lower cost.
But before you decide, one of the most important things to do is to take the time to understand the space itself. How many people will be in there? What kind of noise are they naturally going to make? A busy kitchen or open-plan office has very different acoustic needs compared to a small meeting room. When you know that, you can start to figure out what kind of treatment fits best.
It’s often more effective to target specific problem areas, like ceilings above collaborative zones or walls near noisy equipment. This kind of strategic approach can deliver excellent results without over-engineering the space, while also helping keep the scheme on budget.
Studies show that how comfortable people feel with the noise around them can really affect how productive and happy they are (Hedge, 2003). But you don’t always want total silence. In fact, spaces that are too “dead” can make people feel isolated or less inclined to chat and collaborate (Centre for the Built Environment, 2015). So, it’s about designing for the right kind of quiet.
Class A acoustics have their place—like in auditoriums, recording studios, or important meeting rooms where clear sound matters most. But in many commercial spaces, mixing it up with different acoustic ratings creates a more natural, comfortable atmosphere. Sometimes, a bit less absorption actually makes a space feel more alive and welcoming.
If you’re planning your next workspace design project and want to get the balance just right, we’re here to help you think it through. Get in touch to have a chat about your project today.
Want to explore acoustic solutions that are tailored to your next design project? Take a look at our full range of acoustic solutions here or give us a call on +44 (0)20 3889 9888, email us at hello@allsfar.com or fill in our contact form on our website here.
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