Green Glue Noiseproofing Clip
The Green Glue Noiseproofing Clip delivers dependable acoustic isolation through its engineered rubber mount and stable load-bearing design. Compatible with standard 25-gauge hat channel, it reduces vibration transfer, improves STC performance, and provides a reliable, installer-friendly solution for high-performance soundproof wall and ceiling assemblies.

- Effective Board Isolation: Rubber-mount decoupling breaks the direct path between drywall and framing to hold real-world STC gains under Type X drywall stacks.
- Strong Testing Backing: Green Glue publishes third-party STC/IIC data across the assemblies its clip is specified in — the numbers behind our Better/Best walls come from those tests.
- Stable, Low-Deflection Design: The load-bearing steel frame limits sag under double-drywall + Green Glue stacks so the isolator keeps working long after install.
- Installer-Friendly Layout: Standard fastener pattern and 24" o.c. spacing match the rest of the clips we sell — no proprietary hardware, no bespoke channel spacing.
Online orders up to 4,999 pieces. For anything larger, call (415) 864-4440 and we'll price the project with you.
Noiseproofing Clip Specifications
- Overall length
- 4.25 in
- Bracket length
- 3.75 in
- Isolator body length
- 3.00 in
- Width
- 1.25 in (1.125 in bracket)
- Profile height
- 1.00 in (0.5 in bracket, 0.375 in pad)
- Bracket engagement height
- 2.234 in
- Weight
- ~2 oz
- Fastener
- 1/4" × 2 1/4" structural screw
- Spacing
- Up to 24 in o.c.
- Max load
- 40 lb / clip
- Isolation element
- Engineered rubber mount
- Frame
- Galvanized structural steel
Hat channel specs
- Length
- 12 ft
- Gauge
- 25 gauge
- Top face width
- 1 1/4 in
- Bottom flange width
- 2 1/2 in max
- Depth
- 7/8 in
Noiseproofing Clip Project Calculator
Enter your surface square footage. We'll return a clip, channel, and screw count for your project — calculations run on our servers so estimates stay accurate as our field data improves.
Adds MLV over Good for a denser limp-mass layer.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
Estimates follow the Green Glue standard clip and hat-channel layout (clips ≤ 24" o.c., hat channel 24" o.c.). A 10% coverage buffer is recommended to cover cuts and re-work.
Estimated STC Gauge
Compare how the Noiseproofing Clip performs across assembly tiers. Select an assembly below to see the estimated STC score.
Framed wall, single 5/8" Type X drywall each side, no insulation.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
- STC 30-39: Loud speech clearly audible next room.
- STC 40-49: Loud speech muffled — normal residential wall.
- STC 50-59: Loud speech barely audible; suitable for offices & multi-family.
- STC 60+: Approaches studio-grade isolation.
How Noiseproofing Clip compares
| Model | Substrate | Hat / Furring Channel | Typical Layout | Isolation Element | Notes |
|---|---|---|---|---|---|
| Green Glue Noiseproofing Clipthis | Wood / light-gauge steel | 25 ga 7/8" hat channel | ≤ 24" o.c. | Engineered rubber mount | Backed by extensive published STC/IIC testing |
| Resilmount A237R | Wood / light-gauge steel | 25 ga 7/8" hat channel | ≤ 48" o.c. | Thermoplastic isolator | Broad UL / assembly listings |
| PAC RSIC-1 | Wood / light-gauge steel | 25 ga 7/8" hat channel | Up to 48" o.c. | EPDM grommet | Extensive third-party testing |
Applicable Assemblies
See where the Noiseproofing Clip fits — from budget baseline to studio-grade isolation.
Best — Green Glue Clips + Channel + Double Drywall + Green Glue
Rockwool insulation · Green Glue Clips on 25-ga hat channel · 5/8" Type X drywall · Green Glue · 5/8" Type X drywall.
Better — Green Glue Clips + Channel + Single Drywall
Rockwool insulation · Green Glue Clips on 25-ga hat channel · single 5/8" Type X drywall each side.
Good — Insulated Wall (no clips)
Baseline framed wall with Rockwool insulation and single 5/8" Type X drywall each side — no decoupling.


