Key Features
- Optimum acoustic performance
- Many sizes available
- Panels have limited downward accessibility. Access doors are recommended for plenum access.
- Easily field-formed panels ship flat
- Integrates with most lighting and HVAC systems
- GREENGUARD Children and SchoolsSM Certified and Indoor Air Quality (IAQ)
Curved CS250
Flame & Smoke Spread | Class A (ASTM E84) |
Light Reflectance (white) | LR1 |
Stability under humidity | Yes |
IAQ Friendly | Yes |
VOCs | No |
Fiber Content | No |
Moisture Resistance | Excellent |
Life Cycle | Excellent |
SOUND ABSORPTION
Ceiling panels are available in a variety of perforation patterns for optimum acoustical performance. Sound absorption can be achieved by the addition of backing these panels with acoustical fabric or pad.
SOUND ABSORPTION (NRC) SUMMARY*
Perforation Pattern | % Open Area | Acoustical Infill | NRC |
#106 | 16% | 1”-1.5 pcf Polywrapped Fiberglass | 0.85 |
#106 | 16% | Non-Woven Acoustic | 0.75 |
#201 | 19.6% | 1”-1.5 pcf Polywrapped Fiberglass and Non-Woven Acoustic | 0.75 |
#201 | 19.6% | Non-Woven Acoustic | 0.75 |
#103 | 20% | 1”-1.5 pcf Polywrapped Fiberglass | 0.90 |
#103 | 20% | Non-Woven Acoustic | 0.80 |
#103 | 20% | 1”-1.5 pcf Polywrapped Fiberglass and Non-Woven Acoustic | 0.90 |
#103 | 20% | 1.25”-2.5 pcf Polywrapped Fiberglass | 0.85 |
*Acoustical Tests performed in accordance with ASTM C423 and ASTM E795, in a type E400 mounting.
For complete testing results and a copy of test reports please contact Hunter Douglas.

Semi-Concealed Grid
Our Semi-Concealed (CS250) ceilings feature an exclusive curved suspension system that defines the shape of the panels mounted to it. We designed this system to maximize versatility and solve challenging design problems. Panels ship flat, reducing lead times and shipping costs.