📊NCC 2022 / AS/NZS 2107:2016 · Australia / New Zealand

Meeting Room Acoustic Design to NCC 2022 / AS/NZS 2107:2016

Meeting rooms require controlled reverberation for clear face-to-face and video-conference communication. The small volume and hard glass partitions common in modern offices make them prone to excessive reverberation and poor speech clarity.

TL;DR

Under NCC 2022 / AS/NZS 2107:2016, a meeting room of 60-100 m³ (typical dimensions 6m × 4m × 2.8m) requires an RT60 of ≤ 0.6s at 500-2000 Hz. Background noise must not exceed 35 dBA. AS/NZS 2107:2016 recommends 30-40 dBA internal noise levels for conference rooms with RT60 around 0.

RT60 Target

≤ 0.6s

Noise Limit

35 dBA

STI Minimum

N/A

Frequency Range

500-2000 Hz

Specific Requirements

Parameter	Target	Clause Reference	Notes
Reverberation Time (RT60)	≤ 0.6s	AS 2107 Table 1	500-2000 Hz, Furnished, unoccupied
Background Noise Limit	≤ 35 LAeq	AS 2107 Table 1	HVAC + building services, unoccupied
Frequency Range	500-2000 Hz	—	Octave bands for compliance assessment

Step-by-Step Compliance Calculation

1
Reference AS/NZS 2107
Conference rooms: noise level 30-40 dBA, RT60 approximately 0.6s per AS/NZS 2107 Table 1.
2
Design acoustic treatment
Specify ceiling and wall treatments to achieve RT60 target in the room volume.
3
Select appropriate HVAC
Specify ducted AC with attenuated supply. Avoid ceiling cassettes directly above conference table.
4
Verify post-fit-out
Measure RT60 and background noise per AS/NZS 2107 methodology.

Recommended Materials

Surface	Material Category	Min NRC	Coverage %
Ceiling	Mineral wool ceiling tile	0.85	80%
Rear wall	Fabric-wrapped panel	0.80	40%
Floor	Carpet	0.30	100%

Browse the full acoustic materials database for absorption coefficients and product specifications.

Common Failure Modes

⚠️Split system noise in meeting rooms

Ceiling cassette AC units positioned directly above the meeting table produce 38-42 dBA at head height.

⚠️Operable wall STC

Operable walls dividing meeting rooms achieve only STC 40-45, well below the STC 52+ needed for speech privacy.

Frequently Asked Questions

What RT60 does NCC 2022 / AS/NZS 2107:2016 require for a meeting room?

NCC 2022 / AS/NZS 2107:2016 requires a reverberation time of ≤0.6s at 500-2000 Hz for meeting room spaces. AS/NZS 2107:2016 recommends 30-40 dBA internal noise levels for conference rooms with RT60 around 0.6s. NCC 2022 references this for commercial buildings. Green Star IEQ credits provide additional incentive for meeting acoustic comfort targets in Australian projects.

What is the maximum background noise level for a meeting room under NCC 2022 / AS/NZS 2107:2016?

NCC 2022 / AS/NZS 2107:2016 sets a maximum background noise level of 35 dBA for meeting room spaces. This includes noise from HVAC systems, building services, and external intrusion, measured with the room unoccupied. Exceeding this limit degrades speech intelligibility and occupant comfort.

How much acoustic treatment does a meeting room need to comply with NCC 2022 / AS/NZS 2107:2016?

A typical meeting room (60-100 m³) requires Mineral wool ceiling tile (NRC ≥0.85) covering 80% of the ceiling as the primary treatment. Additional wall absorption on 2 surface(s) is typically needed. Use the AcousPlan calculator with the pre-loaded dimensions (6m × 4m × 2.8m) to calculate the exact absorption deficit for your room.

Calculate NCC 2022 / AS/NZS 2107:2016 Compliance for Your Meeting Room

Pre-loaded with typical meeting room dimensions (6m × 4m × 2.8m) and an RT60 target of 0.6s per NCC 2022 / AS/NZS 2107:2016. Enter your actual dimensions, select materials, and verify compliance instantly.

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