Resilmount MBFR
The MBFR (Mounting Bracket, Furring, Resilient) is an adjustable sound isolation bracket for wall assemblies. It decouples furring channel from concrete, masonry, wood, or steel substrates while simplifying leveling — reducing vibration transfer and improving acoustic performance without the extra time or hardware of stacked shims.
- Engineered Wall Decoupling: Designed specifically for wall assemblies — MBFR isolates furring channel from structural substrates to interrupt vibration paths and reduce sound transmission.
- Integrated Leveling Capability: Built-in adjustment positions allow precise channel alignment without shims — ideal for uneven concrete, CMU, or steel surfaces.
- Advanced Resilient Isolation Core: A proprietary thermoplastic rubber insert absorbs and dissipates vibrational energy, minimizing mechanical coupling across large wall areas.
- Durable Structural Construction: Formed steel body maintains load stability and alignment while working in tandem with the resilient core — balancing strength and acoustic absorption.
Online orders up to 4,999 pieces. For anything larger, call (415) 864-4440 and we'll price the project with you.
MBFR Specifications
- Width
- 1-1/4 in
- Height
- 1 3/8 in
- Depth
- 4-7/8 in
- Max spacing
- 48" on center
- Max load
- 55 lb
- Isolation element
- Thermoplastic rubber isolator core
Hat channel specs
- Gauge
- 25 gauge with hemmed edge
- Depth
- 7/8 in
- Width top
- 1 1/4 in
- Width bottom
- 2 1/2 in
MBFR 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.
Estimates use clip spacing ≤ 48" o.c. and hat channel ≤ 24" o.c. A 10% buffer is recommended for corners and re-work.
STC Gauge
Compare how the MBFR performs across assembly tiers. Select an assembly below to see the resulting STC score.
MBFR + channel system + MLV + double 5/8" drywall with Green Glue between layers, insulated stud wall.
- 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 MBFR compares
| Model | Primary Use | Hat Channel | Typical Layout | Isolation Element |
|---|---|---|---|---|
| MBFRthis | Adjustable resilient furring bracket (walls) | 25-gauge 7/8" | ≤ 48" o.c. clip · ≤ 24" o.c. hat | Thermoplastic rubber isolator |
| MBF | Adjustable leveling clip (rigid) | 25-gauge 7/8" | ≤ 48" o.c. clip · ≤ 24" o.c. hat | None |
| A237R | Resilient sound isolation clip (fixed height) | 7/8" or 1 1/2" | ≤ 48" o.c. clip · ≤ 24" o.c. hat | Thermoplastic rubber sound cells |
Applicable Assemblies
See where the MBFR fits — from budget baseline to studio-grade isolation.
Best — Clips + Insulation + MLV + Double Drywall + Green Glue
Stud wall · insulation · MBFR + channel system · MLV · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Better — Clips + Double Drywall + Green Glue
Stud wall · insulation · MBFR + channel system · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Good — Clips + Silent FX Drywall
Stud wall · insulation · MBFR + channel system · Silent FX damped drywall · acoustic sealant.
