RSIC-1® Backer
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RSIC-1® Backer (Heavy Duty Mounting)
The RSIC-1® Backer and RSIC-1® Backer HD are your go-to heavy-duty mounting solution when you need strength and true acoustic isolation. Paired with RSIC-1® clips, it forms the only fully engineered system designed to support heavy fixtures like cabinets, speakers, and TVs while keeping them decoupled from the structure. Whether you're building new or upgrading an existing space, the RSIC-Backer makes it easy to hang TVs, cabinets, shelves, and more—without transferring noise or vibration through the wall.
If you want dependable support and a quieter room, this is the backbone you want behind your drywall.
Features
- Heavy-load support – Mounts TVs, cabinets, and fixtures without compromising isolation
- Acoustic decoupling – Reduces vibration and structure-borne noise transfer
- RSIC-1 compatible – Integrates seamlessly with RSIC-1 clip isolation systems
- Wall and ceiling use – Works in both vertical and overhead applications
- Consistent performance – Maintains proper deflection for reliable sound isolation
- Easy installation – Installs directly to studs in new or retrofit builds
- Made in the USA – Proudly made in America
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Specs
Specs
| Backer Dimensions | 4" Wide x 6" Long x 1-5/8" Deep |
| Maximum Acoustical Design Load | Standard: 108 lbs per isolator HD: 216 lbs per isolator |
| Maximum Spacing | 16" oc: Backer every other stud |
| Steel Track (C-Channel) | 16 gauge minimum Depth: 1-1/4" Width (top): 6" Meets or exceeds SFIA and SSMA requirements |
Screw Information
Screw Information
| RSIC-1® Backer to Wood | #8 x 2-1/2" minimum size coarse thread screw |
| RSIC-1® Backer HD to Wood | #10 or #12 x 2-1/2" minimum size coarse thread screw |
| RSIC-1® Backer to Metal | #8 x 1-5/8" minimum size fine thread screw |
| RSIC-1® Backer HD to Metal | #10 or #12 x 1-5/8" minimum size fine thread screw |
| Steel Track to RSIC-1 Backer | 1/2" minimum pan head self drilling framing screw (4 per Backer) |
Installation Instructions
Installation Instructions
- Calculate how much weight the backers need to support (for cabinets, consider what will be put in them).
- This is for the acoustical design load. The backers can hold several times more than the listed acoustical load.
- Attach RSIC-1 clips and snap in 25 gauge hat channel
- On the same horizontal plane and between the RSIC-1 clips, screw in the RSIC-1 Backer in locations on the wall needing additional support. This could be 1 row or it could be multiple rows depending on size and weight of the components.
- Fasten 6" Wide, 16 gauge (min.) steel track (C-Channel) to the RSIC-1 Backer using screws. This steel track will be flush with the 25 gauge hat channel.
- To fasten the steel track, screw through the face of the steel track with (4) 1/2" min. self-drilling screws per backer (example: Truss Head Screw)
- Attach 5/8” drywall to 25 gauge hat channel.
- Screw the components needing support into the steel track supported by RSIC-1 Backer.
