Acoustic Door Calculator – Find the Right SilentDoor® for Your Noise Problem

Calculate Your Acoustic Door Requirements and See the Difference in Noise Reduction

Choosing the right acoustic door can be difficult. Sound levels are measured in decibels (dB), but understanding what a 40dB, 50dB or 60dB acoustic door actually means in a real-world environment is often confusing.

Our SilentDoor® Acoustic Door Calculator helps you visualise the difference an acoustic door can make by comparing the noise level before installation with the expected sound level after the door is fitted.

Simply select the noise source you want to reduce, choose your required SilentDoor® performance level, and see how the acoustic environment changes.

From busy offices and meeting rooms to recording studios, cinemas and specialist acoustic spaces, our calculator helps you select the right acoustic door for your application.

Important notice:
This calculator provides an indication of potential noise reduction for guidance purposes only. Actual installed performance may vary depending on the building construction, installation quality, surrounding elements, and site conditions. Always confirm acoustic requirements with project specifications and appropriate technical advice.

How Does an Acoustic Door Reduce Noise?

Sound travels through openings, gaps and lightweight construction. A door is often the weakest point in an acoustic wall because it includes moving parts, seals and interfaces that must operate correctly.

A high-performance acoustic door works by combining:

• High-density acoustic cores
• Multiple acoustic layers
• Precision engineered frames
• Perimeter compression seals
• Acoustic glazing options where required
• Tested door leaf and frame combinations

A SilentDoor® acoustic door is designed to reduce sound transmission between spaces while maintaining reliable operation and long-term performance.

What Does an Acoustic Door Rating Mean?

Acoustic doors are commonly measured using an Rw rating, which represents the sound reduction performance measured in decibels.

The higher the Rw rating, the greater the potential reduction in transmitted sound.

Why Does a 10dB Improvement Make Such a Difference?

Decibels are logarithmic, not linear.

This means a small increase in acoustic performance can create a significant difference in what people experience.

As a guide:

• 10dB reduction – approximately half as loud
• 20dB reduction – approximately one quarter as loud
• 30dB reduction – approximately one eighth as loud
• 40dB reduction – approximately one sixteenth as loud
• 50dB reduction – approximately one thirty-second as loud

For example:

A conversation at 60dB passing through a standard doorway may be reduced to approximately 20dB with a 40dB acoustic door.

The result changes from normal conversation levels to a quiet background environment.