Metal Fire Doors
STRONG DOORS. SAFE SPACES.
Engineered hollow metal fire-rated doors manufactured using premium galvanized iron (GI) steel and certified thermal core insulation. Tested to IS 3614:2021 & BS 476 standards.
Metal Fire Rated Doors
Metal fire rated doors are engineered to prevent the rapid spread of fire, heat, and toxic smoke during structural emergencies. Manufactured using prime high-grade galvanized iron (GI) steel and advanced fire-resistant core materials, these doors provide dependable physical containment for commercial, industrial, healthcare, and high-rise residential buildings.
Every assembly is fabricated with rigid internal stiffeners, reinforced hardware anchoring points, and perimeter smoke-expansion seals to comply with certified national and international life-safety standards.
Metal Fire Door Performance & Features
DORPRIME™ manufactures certified fire doors engineered for maximum safety, durability, and compliance with fire safety standards across heavy commercial and industrial facilities.
Our metal fire rated doors are designed for maximum safety, durability, and compliance, making them ideal for commercial, industrial, healthcare, hospitality, and institutional applications.
Key Features of Metal Fire Rated Doors
Built to the highest industrial manufacturing tolerances with cold-rolled automated forming lines.
Fire Resistance Ratings
Available in 60, 90 & 120 minute fire resistance ratings tested for continuous stability and integrity under extreme thermal loads.
Heavy Duty Steel Construction
Manufactured using high-grade galvanized steel sheets (1.2mm – 1.6mm thickness), ensuring exceptional structural rigidity, durability, and impact resistance.
Fire Resistant Core
Infilled with certified high-density mineral rock wool or structural fire-retardant honeycomb core for maximized thermal shielding and containment.
Smoke & Heat Sealing
Heavy-duty perimeter intumescent seals expand up to 25x under heat to create an airtight thermal barrier, preventing toxic gas and smoke spread.
Specifications of Metal Fire Rated Doors
Detailed technical dimensions, sheet gauges, core infills, and compliance standards for insulated and uninsulated assemblies.
Specifications of Metal Fire Rated Doors (Insulated)
High thermal shielding with certified rock mineral wool core
| Specification | Details |
|---|---|
| Fire Rating | 60 / 90 / 120 min |
| Criteria | Stability and Integrity with Partially Insulation |
| Door Thickness | 46mm / 50mm / 60mm |
| Steel Sheet Thickness | 1.2mm – 1.6mm (Galvanized Steel) |
| Core Material | Mineral wool (Certified High-Density Rockwool) |
| Frame Section | 100mm X 57mm, 125mm X 65mm |
| Finish | Powder Coated / Stainless Steel (SS 304 / SS 316) |
| Standards | IS 3614:2021 & BS 476 Part 20/22 |
Types of Metal Fire Rated Doors
Manufactured to exact architectural door schedules with custom sizing, hardware, and vision panel cutouts.
Single Leaf Fire Doors
Ideal for individual fire exit stairwells, lift lobbies, electrical transformer rooms, and utility service ducts. Engineered with reinforced panic bar anchor plates.
- Width: Up to 1200mm
- Height: Up to 2400mm
- Rating: 60 / 120 min
Double Leaf Fire Doors
Engineered for wide evacuation passages in shopping malls, hospitals, corporate towers, and manufacturing bays with rebated astragal and door coordinators.
- Width: Up to 2400mm
- Height: Up to 2400mm
- Rating: 60 / 120 min
Metal Fire Doors with Vision Panel
Fitted with fire-rated clear ceramic vision glass panels (wired or clear fire glass). Offers natural daylight transmission without compromising fire integrity.
- Vision: Up to 2 hours rated glass
- Beading: Steel channel
- Rating: 60 / 120 min
Metal Acoustic Fire Doors
Dual-engineered assemblies providing both certified fire protection and high acoustic sound attenuation (STC 35 to STC 48) for plant rooms and auditoriums.
- Acoustic: STC 35-48 dB
- Drop Seals: Mechanical
- Rating: 60 / 120 min
Lead Lined Fire Doors
Continuous internal sheet lead lining engineered for medical diagnostic rooms, CT scan suites, and hospital radiology departments requiring both X-ray shielding and fire safety.
- Lead Core: 1mm to 3mm
- Hospital Grade
- Rating: 60 / 120 min
Advantages of Metal Fire Rated Doors
Metal fire rated doors are engineered to provide superior fire protection, structural strength, and long-lasting performance in commercial, industrial, healthcare, hospitality, and residential buildings. Designed to withstand high temperatures and prevent the spread of fire and smoke, these certified steel fire doors enhance occupant safety while ensuring compliance with national and international fire safety standards. Their robust construction, corrosion-resistant finish, and low maintenance requirements make them the preferred choice for architects, builders, and facility managers seeking reliable passive fire protection solutions.
Prevents Spread of Fire and Smoke
Metal fire rated doors act as a high-integrity barrier that slows down the spread of active flames, heat, and toxic smoke between compartment zones.
Ensures Safe Evacuation Time
These doors contain catastrophic fire for 60 to 120 minutes, granting occupants adequate time to safely evacuate corridors and stairwells.
Enhances Building Fire Safety Compliance
Installing certified fire doors guarantees strict compliance with National Building Code (NBC India), local fire safety bylaws, and IS 3614:2021 standards.
High Structural Strength
Manufactured from high-grade galvanized steel, these assemblies provide unyielding strength and resistance to mechanical impact, abuse, and thermal distortion.
High-Quality Spares & Hardware
We integrate heavy-duty UL-listed panic exit devices, ball-bearing stainless steel hinges, overhead hydraulic closers, and mortise panic locksets for seamless operation.
Honest & Transparent Pricing
Direct factory pricing with complete transparency, zero hidden surcharges, and comprehensive certification documentation for every project scale.
Why Choose DORPRIME™ for Metal Fire Rated Doors
Bihari Steel Solutions Pvt. Ltd. manufactures certified DORPRIME™ fire doors designed for maximum safety, durability, and statutory life-safety compliance.
• In-house Quality & Intumescent Seal Testing
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