ToughRock® Shaftliner
- Panels have a noncombustible gypsum core (as described in ASTM E136) encased in moisture-resistant green paper facings.
- One component in gypsum board shaftwall, stairwell, area separation wall, and horizontal membrane and duct protection assemblies with a designated fire-resistive rating used in building construction.
- UL classified Type TRSL for use in a variety of fire rated assemblies.1
- Limiting loads and heights not to exceed design specification.
- Used for area separation walls, stairwells, elevator shafts, and other interior mechanical system or duct enclosures.
Product Details
ToughRock® Shaftliner is the ultimate choice for building professionals seeking reliable fire-resistive solutions for shaftwalls, stairwells, and area separation walls.1 Crafted with a noncombustible gypsum core that complies with ASTM E136 standards, this versatile panel not only enhances safety but also delivers exceptional performance for critical building applications. Encased in moisture-resistant2 green paper facing, ToughRock® Shaftliner provides additional protection, making it a dependable component in environments where both fire resistance and moisture tolerance are essential.
Each panel integrates seamlessly into gypsum board assemblies alongside metal components, joint tape, and sealants to deliver fire-rated protection that meets or exceeds IBC and IRC compliance standards. With its UL classified Type TRSL certification and a flame spread rating of 15, it offers a high level of fire safety, potentially delaying the spread of fire and adding valuable minutes in emergency situations.
Installation is straightforward—these robust panels can be easily cut, shaped, and fitted into assemblies, ensuring secure, tight joints for optimal performance. Plus, with its careful design and quality manufacturing, ToughRock® Shaftliner protects both framing members and peace of mind in projects of all scales.
FEATURES AND BENEFITS
- Noncombustible Core: Features a noncombustible gypsum core (as per ASTM E136) encased in durable, moisture-resistant green paper facings.
- Superior Fire Resistance: Classified as UL Type TRSL, these panels help contain fire and potentially delay its spread.
- Versatile Applications: Ideal for shaftwall systems, stairwells, and area separation walls in both residential and commercial building projects.
- Moisture Resistance: Resilient against occasional moisture exposure, offering reliability in varied environments.
Product Specifications
PHYSICAL PROPERTIES
| Length | standard2: 8′ (2440 mm) to 12′ (3658 mm) ± 1/4″ (6.4 mm) |
| Width | Nominal2: 24″ (610 mm) – 3/32″(2.4 mm) |
| Thickness | nominal inches2: 1″ (25.4 mm), ± 1/32″(0.8 mm) |
| Weight | lbs./sq. ft., nominal (kg/m²): 4 (19.5)1 |
| Edge | Double beveled |
PERFORMANCE ATTRIBUTES
| R Value | ft2•°F•hr/BTU (m2•K/W): 0.56 est. (0.10)3 |
| Humidified Deflection | 5/8″ (16 mm) |
| ASTM Type | ASTM C1396; ASTM C1629; ASTM C473; ASTM E136; ASTM E84 |
| Flame Spread & Smoke Development | 15 & 0 (product dependent) |
| Mold Resistance (only include for Dens® and MMR products) | No (10/10) |
| Water Absorption for Dens® and MMR products | 5% |
CERTIFICATIONS
1 Consult UL Fire Resistance Directory for assembly information.
2 ToughRock® Shaftliner is not designed for exposure to constant high-moisture conditions or direct water.
3 Specified minimum values are as defined in ASTM C1396.
*FIRE SAFETY CAUTION – Passing a fire test in a controlled laboratory setting and/or certifying or labeling a product as having a one-hour, two-hour, or any other fire resistance or protection rating and, therefore, as acceptable for use in certain fire rated assemblies/systems, does not mean that either a particular assembly/system incorporating the product, or any given piece of the product itself, will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any product or assembly/system. For additional information concerning fire ratings and fire safety, visit our Product Fire, Safety and Use Information page.
Consumer Product Safety Act (CPSA) – For CPSA General Certificate of Conformity, please click here.
Resources
FAQs
The paper facers are made with 100% recycled paper. The total amount of recycled content depends on the manufacturing location.
Georgia-Pacific Gypsum does not offer a limited warranty for ToughRock® Shaftliner for exposure to weather conditions. If you require a product that does have a limited warranty for exposure to normal weather conditions, consider using DensGlass® Shaftliner.