One of the most frequent questions we’re asked is: how much floor does one CALMFLOOR unit control?

The answer to this FAQ really depends on your building’s structural design. CALMFLOOR isn’t a fixed system – it’s a discreet, versatile solution that directly controls the vibration hotspots our simulations identify. Active mass damper (AMD) units are specified according to how your floor behaves rather than a square-metre-count approach.

Floor vibration control tailored to your structure for maximum performance

What matters isn’t just floor area – it’s how the floor is built, the design, floor materials used and the sources of vibration that are causing the floor vibration problems.

Each CALMFLOOR unit is engineered to respond dynamically with multi-frequency control to floor vibration in real time. But how much floor a single AMD can control isn’t fixed – it depends on key structural variables and the cause of the excessive vibrations in that space:

  • The type of floor system (composite, concrete, steel deck, mass timber, etc.)
  • Construction materials and thicknesses
  • Beam and joist layout
  • Column grid spacing
  • Modal properties of the floor slab (natural frequency, damping, mode shape)
  • Causes of floor vibration (human movement, road and rail traffic, machinery, gym equipment, etc.)

The more we understand about these variables, the more precisely we can specify how many units you’ll need and where they should go.

What kind of floor grids are we talking about?

CALMFLOOR units can control vibration via a range of floor plates and column grids, from 7.5m x 7.5m through to 16m x 9m. The exact layout depends on how the floor performs and where control is needed most.

What’s important isn’t the raw area alone, but how the floor vibrates across those spans. That’s why CALMFLOOR always uses floor-vibration simulation to define the best unit distribution for your space, not just quantity, but placement and tuning too.

Data-led design, not guesswork

Before any CALMFLOOR system is installed, we run detailed simulations using the building’s own modal data. This tells us how the floor behaves under real-world conditions: where vibration hotspots occur, how energy propagates and how each AMD can be deployed for maximum impact.

This simulation-led approach ensures optimal coverage with minimal hardware, giving you effective, targeted vibration control without overengineering the space. No guesswork. No waste.

Let’s map out your floor

There’s no generic answer to how many units your project needs, but there is a proven process to find the right one. CALMFLOOR’s expert simulation team will analyse your floor system, define optimal AMD unit placement and model vibration control to give you all the performance data you need to make a decision with total confidence.

From compact spaces to expansive open-plan environments, high-rise office buildings to new build life science developments, we’ll pinpoint exactly what your floor needs to achieve the maximum performance possible.

Talk to the floor vibration experts at CALMFLOOR to find out how many AMD units your project will need.

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