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Classroom Acoustic Requirements

Primary and secondary school classrooms, lecture rooms. Typical volume: 150-300 m³. Covered by 4 acoustic standards.

RT60 (Reverberation Time)
The time, in seconds, for a sound to decay by 60 decibels after the source stops. Measured per ISO 3382-2:2008 at octave band centre frequencies from 125 Hz to 4 kHz.
Reference: ISO 3382-2:2008 \u00A73.1

Standards Comparison for Classroom

StandardRT60 TargetBackground NoiseSTI Target
UKBS 8233:2014≤ 0.6s (500-2000 Hz)≤ 35 dBANot specified (see ANSI S12.60)
Germany/EUDIN 18041:2016≤ 0.55s Quality Class A | ≤ 0.75s Quality Class B≤ 35 dBA≥ 0.65 (Class A)
USAANSI S12.60≤ 0.6s unoccupied≤ 35 dBA≥ 0.60 unoccupied
GlobalWELL v2 Feature 74≤ 0.6s furnished≤ 35 dBA (HVAC)≥ 0.60

Detailed Requirements by Standard

BS 8233:2014UK · BSI
RT60≤ 0.6s (500-2000 Hz)
Noise Limit≤ 35 dBA
Treatment40-48 m² ceiling panels per 200 m³
DIN 18041:2016Germany/EU · DIN
RT60≤ 0.55s Quality Class A
Noise Limit≤ 35 dBA
Treatment44-52 m² ceiling panels per 200 m³
ANSI S12.60USA · ASA
RT60≤ 0.6s unoccupied
Noise Limit≤ 35 dBA
Treatment38-46 m² ceiling panels per 200 m³
WELL v2 Feature 74Global · IWBI
RT60≤ 0.6s furnished
Noise Limit≤ 35 dBA (HVAC)
Treatment40-50 m² depending on furnishings

Frequently Asked Questions

What RT60 does a classroom need?

RT60 targets vary by standard. BS 8233:2014 requires ≤ 0.6s (500-2000 Hz). DIN 18041:2016 requires ≤ 0.55s Quality Class A | ≤ 0.75s Quality Class B. ANSI S12.60 requires ≤ 0.6s unoccupied. WELL v2 Feature 74 requires ≤ 0.6s furnished.

Which acoustic standard applies to classroom spaces?

The applicable standard depends on region and certification: BS 8233:2014 (UK), DIN 18041:2016 (Germany/EU), ANSI S12.60 (USA), WELL v2 Feature 74 (Global).

How much does acoustic treatment cost for a classroom?

Costs vary by standard and treatment scope. BS 8233:2014: £16,000-£20,000 per classroom installed. DIN 18041:2016: €19,000-€24,000 per classroom installed. ANSI S12.60: $22,000-$32,000 per classroom installed (USD). WELL v2 Feature 74: Site-specific.

Verify Compliance for Your Classroom

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