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Forster presto Fire-Rated Steel Frames deliver maximum protection with the slimmest profiles in North America.
The Forster presto system offers a high-performance solution for commercial environments requiring rigorous fire-protective safety without sacrificing modern aesthetics. These narrow-profile steel frames are Intertek-listed and fire-rated for 20 to 90 minutes, making them ideal for high-traffic North American applications such as doors, sidelites, transoms, and borrowed lites. Architects and contractors can customize installations with flexible finish options, from TGIC-free powder coats to brushed or stainless steel cladding, and benefit from factory-installed hardware packages designed for seamless integration. Compliant with major industry standards including NFPA 80, UL 10C, and ULC S104, Forster Presto ensures reliable positive-pressure performance and hose-stream resistance for critical life-safety infrastructure.
 Target Environment |
 Key Threat Mitigation |
 Visual Goal |
|---|---|---|
High-Traffic Corridor Partitions | Passes positive pressure and hose-stream testing to secure critical pathways. | Promotes natural daylighting and unobstructed sightlines between interior spaces. |
Stairwell Enclosures | Provides dependable containment of smoke and flames along vertical paths. | Replaces solid, isolating walls with transparent glass partitions for enhanced visibility and light. |
Educational & Healthcare Sidelites | Fire-protective safety with factory-installed hardware for secure lockdown. | Delivers a minimalist, open aesthetic that enhances student and patient well-being. |
Ground-Level Windows | High-strength steel construction provides structural durability alongside 20-90 minute fire-protective ratings. | Delivers exceptionally narrow sightlines for perimeter glass, bridging security with a clean design. |
Commercial Interior Fit-Outs | Custom-engineered configurations for doors, windows, and interior partitions, providing certified fire-rated integrity for wall systems and overhead glass. | Seamless design integration using narrow profiles, concealed hardware, and customized finishes. |
Attributes
-
Fire -
Slim-Steel Framing -
S-Label (UL 1784) -
Hose Stream Tested -
Positive Pressure Tested -
TGIC-Free Powder Color Options -
Intertek Listed -
LEED
Engineered for versatility, the system supports both fire-rated and smoke-rated (S-label per UL 1784) requirements while maintaining slim sightlines that maximize natural daylight.
Why choose Forster presto steel fire-rated framing by McGrory Glass?
Comprehensive Fire and Smoke Protection
This system is rigorously tested and Intertek-listed to provide fire ratings ranging from 20 to 90 minutes. It meets critical North American standards such as NFPA 80, UL 10C for positive pressure, and UL 9 for windows. Additionally, S-label options are available to meet UL 1784 smoke-rated door requirements, ensuring versatile life-safety performance across various building zones.
Ultra-Slim, Modern Profiles
Forster presto is engineered with narrow sightlines that eliminate the bulky, institutional appearance often associated with traditional fire-rated framing. These slim steel profiles maximize the daylight opening (DLO), allowing for greater natural light transmission and a sleeker aesthetic. This feature is ideal for architects looking to maintain a consistent design language between fire-rated and non-rated areas.
Durable and Sustainable Steel Construction
Manufactured from high-strength steel, this uninsulated system offers exceptional durability and resistance to long-term stress in high-traffic environments. It is a sustainable choice, featuring 100% recyclable materials and a product-specific Environmental Product Declaration (EPD). The inherent strength of steel also allows for larger glass panes and expansive glazed closures without sacrificing structural integrity.
Fully Fabricated Efficiency
To streamline the installation process, McGrory Glass supplies frames as fully fabricated K/D (knock-down) assemblies. This factory-controlled fabrication ensures precision and high quality while reducing on-site labor and assembly time. It provides a “ready-to-install” solution that is particularly beneficial for complex commercial and institutional projects.
Integrated High-Performance Hardware
McGrory offers factory-installed hardware packages that are specifically designed to work seamlessly with the Forster presto profile. Options include concealed hardware to maintain a clean aesthetic and specialized fittings for single or double-leaf door configurations. This integration ensures that all components work together to meet strict fire and safety codes while providing smooth operational functionality.
Extensive Aesthetic Customization
Architects can specify the system in a wide range of finishes to match their project’s color scheme, including standard and custom TGIC-free powder coats to brushed or stainless steel cladding. Standard and custom RAL powder color options are available, providing significant design flexibility for both interior and exterior applications. This allows for a premium finish that complements high-end office spaces, university hubs, and modern commercial lobbies.
Download Technical Resources
Featured Resources
Specifications
Section 08 41 23: McGrory Forster Presto Fire-Rated System & Hardware 3-Part Specifications – Fire-Protective Steel Framing
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Specifications
Section 08 41 23: McGrory Smoke-Rated System & Hardware 3-Part Specifications – UL1784 – Forster Presto Steel Framing
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BIM files
forster presto by McGrory Glass 60 minute Fire Rated Single Door & Sidelite Elevation
DownloadTechnical Data
The Forster presto steel fire-rated framing system by McGrory Glass offers a robust set of features designed to balance high-level fire safety with modern architectural design
| Minute Rating | Make-up | Finishes | Applications | Max Width – Doors | Max Height – Doors | Max Exposed – Other than Doors | Max Width – Other than Doors | Max Height – Other than Doors |
|---|---|---|---|---|---|---|---|---|
20 minute | Steel | • Brushed/Polished Stainless Steel Cladding • TGIC-Free-Powder-Coat Colors (Stock & Custom) | Doors Borrowed Lites Sidelites Transoms Walls Windows | 42″ | 96″ | 6396 in2 | 106- 1/2” | 106- 1/2” |
45 minute | Steel | • Brushed/Polished Stainless Steel Cladding • TGIC-Free-Powder-Coat Colors (Stock & Custom) | Doors Borrowed Lites Sidelites Transoms Walls Windows | 42″ | 96″ | 3855 in2 | 95″ | 95″ |
60 minute | Steel | • Brushed/Polished Stainless Steel Cladding • TGIC-Free-Powder-Coat Colors (Stock & Custom) | Doors Borrowed Lites Sidelites Transoms Walls Windows | 42″ | 96″ | 3855 in2 | 95″ | 95″ |
90 minute | Steel | • Brushed/Polished Stainless Steel Cladding • TGIC-Free-Powder-Coat Colors (Stock & Custom) | Doors Borrowed Lites Sidelites Transoms Walls Windows | 42″ | 96″ | 2627 in2 | 84″ | 84″ |
Listings & Test References
NFPA
UL
ULC
Product Certification Testing References
- UL 9: Standard for Fire Tests of Window Assemblies
- UL 10B: Standard for Safety – Fire Tests of Door Assemblies
- UL 10C: Standard for Positive Pressure Fire Tests of Door Assemblies
- NFPA 80: Standard for Fire Doors and Fire Windows
- NFPA 105: Standard for Smoke Door Assemblies and Other Opening Protectives
- NFPA 252: Standard Methods of Fire Tests of Door Assemblies
- NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies
Proud partners of world-class steel framing manufacturer, Forster.
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