Open Plan Office Acoustic Design in United States — ANSI S12.60 Requirements
Open plan workspaces, trading floors, collaborative offices. Typical volume: 500-5,000 m².
What ANSI S12.60 Requires for a Open Plan Office in United States
Regulation: ANSI S12.60 is classroom-specific
RT60 target: No specific target
Background noise limit: ≤ 45 dBA
STI requirement: N/A (classroom standard)
Local note: For US offices, WELL F74 and ASHRAE 55 apply.
How to Calculate ANSI S12.60 Compliance for a Open Plan Office in United States
- 1
Identify the applicable United States standard and target
Look up ANSI S12.60 for open plan office spaces in United States. The RT60 target is No specific target. ANSI S12.60 is classroom-specific.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical open plan office has a volume of 500-5,000 m².
- 3
List all surfaces and their absorption coefficients
For each surface (floor, ceiling, walls, windows, doors), find the absorption coefficient at each octave band frequency (125 Hz to 4 kHz) from ISO 354 test data or a materials database.
- 4
Calculate total absorption and apply the Sabine or Eyring equation
Sum all surface absorption values: A = sum of (alpha x area). Then apply T60 = 0.161 x V / A (Sabine) or T60 = -0.161 x V / (S x ln(1 - alpha_avg)) (Eyring). Use Eyring when average alpha exceeds 0.20.
- 5
Compare result against ANSI S12.60 and specify treatment
If the calculated RT60 exceeds the target of No specific target, specify additional absorption. Typical treatment cost in United States is $85–$155/m².
Cost of Compliance in United States
Treatment Cost Range
$85–$155/m²
Currency: $
What Affects Cost
- • Room volume and surface area
- • Target standard strictness
- • Existing acoustic conditions
- • Finish and material quality
How ANSI S12.60 Differs from Other Standards for Open Plan Office in United States
| Requirement | ANSI S12.60 | WELL v2 Feature 74 |
|---|---|---|
| RT60 Target | No specific target | ≤ 0.5s |
| Background Noise | ≤ 45 dBA | ≤ 45 dBA |
| STI | N/A (classroom standard) | < 0.50 |
| Cost Range | $85–$155/m² | $95–$175/m² |
Frequently Asked Questions
What RT60 does ANSI S12.60 require for a open plan office in United States?
ANSI S12.60 requires a reverberation time of No specific target for open plan office spaces in United States. ANSI S12.60 is classroom-specific. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a open plan office in United States?
The background noise limit is ≤ 45 dBA under ANSI S12.60. This typically refers to HVAC and building services noise measured with the room unoccupied.
How much does acoustic treatment cost for a open plan office in United States?
Typical acoustic treatment for a open plan office in United States costs $85–$155/m². Costs vary based on finish quality, room size, and existing conditions.
Calculate ANSI S12.60 Compliance for Your Open Plan Office in United States
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