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Fire Rated Steel Door

YUOU® steel fire doors are manufactured with a high-strength steel plate structure and internally filled with premium fire-resistant and thermal insulation materials. In the event of a fire, they effectively block the spread of flames and high-temperature toxic smoke, creating a reliable fire compartmentation barrier. Their stable fire resistance performance meets strict building fire safety regulations, buying critical time for personnel evacuation and rescue operations.

The door body structure has undergone heavy-duty reinforcement design, featuring high overall strength and excellent impact resistance. The surface of the steel door panel has undergone professional anti-corrosion and anti-rust treatment, featuring excellent weather resistance and durability, and can perfectly adapt to various harsh long-term usage environments.

YUOU® fire rated steel doors support a wide range of custom sizes and surface colors. Depending on specific architectural requirements, they can be flexibly configured with various fire-rated hardware accessories and opening mechanisms. By balancing uncompromising fire safety performance with overall building aesthetics.

Technical Data

Door Panel Sheet Thickness	1.0mm galvanized steel
Filling Material	Fireproof perlite plate
Seal	All-around fire and smoke prevention expansion seal
Door Frame	Sheet thickness 1.5mm galvanized steel
Standard Door Panel Thickness	45mm
Hinges	443 mm stainless steel hinge

Options

Window	Support customization
Door leaf	①Single door ②Double door ③Unequal double door
Color	Red/White/Blue/Black/Frosted/Smooth.etc Other colors can be customized.
Optional Device	①Door closer ②Electric door closer ③Escape lock ④Push bar lock ⑨Other related device

Product Details

Discover how YUOU® clean room doors deliver superior hygiene, durability, and airtightness.

Structure Diagram

The steel fire door structural diagram details the door’s reinforced panel design, internal fire-retardant core, and intumescent seals, providing a clear overview of its robust construction and fire-compartmentation principles.

Door Panel

The double-layer door panels of YUOU® fireproof steel doors are made of high-quality 1.0mm galvanized steel plates, and the interior is significantly reinforced by a sturdy U-shaped reinforced steel channel frame. This powerful frame structure can effectively prevent the door from bending or deforming under the high temperature of a fire, ensuring that the door remains precisely aligned and can be opened smoothly during critical emergency evacuation processes.

The inner cavity of the door leaf is densely filled with high-performance fire-resistant and heat-insulating material – high-density rock wool board. It can effectively block the transfer of radiant heat. The surface of the door panel has undergone industrial-grade anti-corrosion powder coating treatment, endowing it with outstanding durability and weather resistance.

Window

YUOU® steel fire doors can be equipped with premium fire-rated vision panels, offering clear sightlines while maintaining the door’s structural integrity. Engineered to withstand intense thermal shock and extreme temperatures, these high-performance glass lites (such as wire glass or advanced transparent ceramic glass) provide matching fire-resistance durations, ranging from 90 minutes.

Crucially, our vision panels are securely mounted using heavy-duty, cold-rolled steel glazing beads and continuous high-temperature intumescent seals. In the event of a fire, this robust framing actively expands to create an airtight, heat-resistant barrier. This mechanism prevents the passage of flames and toxic smoke around the glass perimeter, ensuring safe evacuation routes and strict compliance with international fire safety codes.

Lock

YUOU® steel fire resistant doors are engineered to integrate seamlessly with a comprehensive range of heavy-duty, fire-certified locks and handles, ensuring immediate exit during emergencies while maintaining high-security access control. Built from premium 304 stainless steel, our hardware withstands extreme temperatures, high-frequency use, and rigorous commercial environments without seizing or failing.

Handle Lock

The door closer is a critical component of a steel fire door system, ensuring the door automatically and securely returns to the closed position to maintain fire compartment integrity. YUOU® steel fire doors are equipped with high-quality door closer systems featuring a die-cast aluminum body and precision hydraulic mechanism. With adjustable closing and latching speeds, the closer is engineered to match various door sizes and weights, providing smooth operation and reliable performance. Integrated with the YUOU® fire door system, it delivers long-term durability and dependable fire safety for modern buildings.

Advantages

Protecting critical spaces with certified fire resistance, robust steel construction, and reliable performance.

Certified Life-Safety Compliance

Fire safety acceptance cannot afford any mistakes. YUOU® fireproof steel doors have undergone rigorous testing and obtained multiple authoritative standard certifications. We offer a real fire resistance duration of 90 to 120 minutes to ensure the formation of absolutely reliable fire compartments, buying the most precious time for emergency evacuation of personnel and fire rescue.

Heavy-Duty Structural Integrity Under Heat

Substandard doors buckle, warp, or jam when exposed to thermal stress, trapping people inside. YUOU® doors are constructed from 1.0-1.5mm premium galvanized steel and reinforced with internal U-shaped channels. Filled with high-density rock wool or perlite, our doors maintain perfect structural integrity and remain operational even in the most intense fire conditions.

Seamless Integration of Egress & Security Hardware

A fire door must act as a seamless escape route from the inside, yet a formidable security barrier from the outside. Our doors are pre-engineered to factory-fit a wide array of commercial hardware, including heavy-duty panic push bars, fire-rated closers, and electronic access controls, ensuring fail-safe egress and everyday building security.

Unlimited Customization & Architectural Aesthetics

Fire safety doesn't have to compromise your building's design. As a direct manufacturer, YUOU® offers unlimited customization. From oversized industrial double doors to perfectly color-matched powder coatings (any RAL color) and integrated fire-rated vision panels, we deliver tailored solutions that blend seamlessly with your commercial architecture.