Round Ceiling Baffle
Cylindrical baffle for sculptural open-ceiling absorption.
Round Baffles present a cylindrical form suspended vertically — a modern architectural absorber for open-plenum ceilings in hospitality, retail, and creative office space.
Send us the room dimensions and target reverb time — we’ll return a coverage plan and estimate.

Why specify the Round Ceiling Baffle
- Open-Cell, Fiber-Free
TECHLITE® melamine foam core — fiber-free with no shedding or airborne particulates.
- Lightweight & Flexible Install
Very lightweight and flexible — suspends from aircraft cable/wire with corkscrew hangers.
- Architecturally Decorative
Cylindrical form doubles as a sculptural design element for open-plenum ceilings.
- ASTM C423-17 Sound Absorption
Tested in accordance with ASTM C423-17 — apparent NRC 0.85 at 6″ diameter × 24″ length.
- Class A Fire Rated
ASTM E84 Class A across finishes for schools, studios, and commercial installs.
- High Light Reflectance
Reflective white face supports daylighting strategies and overall room brightness.
- Better Speech Intelligibility
Multi-directional cylindrical face absorbs from all sides for clearer speech and overall comfort.
Where the Round Ceiling Baffle fits
- Fitness facilities
- Restaurants and bars
- Auditoriums
- Lobbies
- Office buildings
- Indoor aquatic and swimming pools
- Gymnasiums
- Indoor gun ranges
NRC Gauge
Independent absorption testing on our TECHLITE® melamine foam — the same material used across our baffle line. NRC is the average absorption from 250 – 2000 Hz, the range that carries most speech and music energy. The cylindrical body exposes 360° of surface to the room, delivering better than 90% absorption at 2000 Hz with 2″ material and an apparent NRC of 0.85 for a 6″ Ø × 24″ baffle.
- SAA
- 0.78
- Mounting
- Type A
Absorption results tested in accordance with ASTM C423-09a — independent third-party acoustic lab report supplied by the manufacturer.
NRC = Noise Reduction Coefficient, the average of the 250, 500, 1000, and 2000 Hz absorption coefficients rounded to the nearest 0.05. SAA = Sound Absorption Average across twelve one-third-octave bands (200–2500 Hz). Mounting follows ASTM E795 (Type A = direct-to-hard-surface).
- NRC 0.00–0.30: Reflective surface — will not meaningfully reduce echo.
- NRC 0.30–0.60: Modest absorption — some reverb reduction.
- NRC 0.60–0.85: Strong absorption — noticeable clarity and comfort gains.
- NRC 0.85+: Studio / broadcast-grade absorption.
Higher NRC = more sound absorbed on impact. NRC only measures absorption within a room; it is not a soundproofing (transmission-loss) rating.
| Finish | Thickness | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | SAA | NRC | Mount |
|---|---|---|---|---|---|---|---|---|---|---|
| White | 1.50" | 0.17 | 0.28 | 0.84 | 0.99 | 1.03 | 1.04 | 0.78 | 0.80 | A |
| 2.00" | 0.23 | 0.48 | 1.08 | 1.19 | 1.16 | 1.11 | 0.97 | 1.00 | A | |
| 3.00" | 0.45 | 0.87 | 1.26 | 1.07 | 1.06 | 1.10 | 1.05 | 1.05 | A | |
| Light Grey | 1.50" | 0.17 | 0.28 | 0.86 | 0.99 | 1.02 | 1.02 | 0.79 | 0.80 | A |
| 2.00" | 0.20 | 0.51 | 1.05 | 1.05 | 1.03 | 1.05 | 0.91 | 0.90 | A | |
| 3.00" | 0.36 | 0.90 | 1.24 | 1.04 | 1.02 | 1.09 | 1.05 | 1.05 | A | |
| ObsidianOfficial test results pending; performance expected to align with TECHLITE® light grey melamine foam. | 1.50" | 0.17 | 0.28 | 0.86 | 0.99 | 1.02 | 1.02 | 0.79 | 0.80 | A |
| 2.00" | 0.20 | 0.51 | 1.05 | 1.05 | 1.03 | 1.05 | 0.91 | 0.90 | A | |
| 3.00" | 0.36 | 0.90 | 1.24 | 1.04 | 1.02 | 1.09 | 1.05 | 1.05 | A |
Product Specs
- Material
- TECHLITE® Flexible Open-Cell Melamine Foam
- Density
- Light Grey 0.56 ± 0.09 lb/ft³ · Natural 0.47 ± 0.13 lb/ft³
- Service temperature
- −40°F to 350°F
- Fire rating (Light Grey)
- ASTM E84 Class A · Flame Spread 10 / Smoke Developed 55
- Fire rating (Natural)
- ASTM E84 Class A · Flame Spread 5 / Smoke Developed 20 · CAN/ULC S102 · Flame Spread 0 / Smoke Developed 30
- Mounting
- Suspended on 1/16" minimum aircraft cable/wire or lightweight chain with corkscrew hangers
- Finish
- Paintable — 1,500+ colors with acoustically transparent paint
- Best use
- Sculptural absorption in open-plenum rooms without covering the exposed ceiling
- Diameter options
- 4" or 6"
- Length options
- 4" Ø: 24", 48" · 6" Ø: 12", 18", 24", 36"
- Custom sizes
- Available on request
- Profile
- Cylindrical — vertically or horizontally suspended baffle
Install guide
Downloads & documentation
Manufacturer datasheets, install instructions, fire-rating test summaries, and certifications for the Round Ceiling Baffle.
Includes 6 technical PDFs.
- Data SheetPDFBasotect® B Technical Information Sheet
Manufacturer data sheet for Basotect® B melamine foam.
Download PDF - Data SheetPDFBasotect® G Technical Information Sheet
Manufacturer data sheet for Basotect® G melamine foam.
Download PDF - Data SheetPDFASTM E-84 Test Summary — Natural White Melamine
Class A fire test summary — Natural finish.
Download PDF - Data SheetPDFASTM E-84 Test Summary — ATC Coating
Class A fire test summary — ATC coating.
Download PDF - Data SheetPDFAcoustic Foam Cleaning Instructions
Care and maintenance guide for melamine foam panels.
Download PDF - Data SheetPDFBuy America Certification
Compliance certification for federally funded projects.
Download PDF
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Not sure how many you need?
Share the room dimensions and how the space is used — we’ll return a treatment plan with panel count, placement, and product mix targeted to your reverb-time goal.


