Honeycomb Fire Rated Doors

Description
Honeycomb fire-rated doors are the industry standard for durability and safety in commercial construction. Engineered with a unique hexagonal cell core bonded to heavy-duty steel face sheets, these doors provide a high strength-to-weight ratio that prevents warping and ensures long-term reliability.
Each door is tested to meet rigorous safety standards, including UL 10C and NFPA 252, providing a critical barrier against smoke and flames. Unlike heavy mineral cores, the honeycomb design allows for easier installation and smoother daily operation without sacrificing fire integrity. Ideal for offices, hotels, and utility rooms, these doors combine modern engineering with essential fire safety compliance.

Key Features
High Strength-to-Weight Ratio: The hexagonal honeycomb core provides exceptional structural rigidity while remaining lighter than solid mineral-core doors.
Warp & Impact Resistance: The resin-impregnated core is permanently bonded to the steel skins, creating a “sandwich” structure that resists bowing, twisting, and denting.
Positive Pressure Certified: Specifically designed to meet UL 10C standards, ensuring the door remains secure against the pressure and hot gases generated during a fire.
Superior Flatness: The uniform cell structure of the honeycomb ensures a perfectly flat surface, which is ideal for high-end powder coat or wood-grain finishes.
Eco-Friendly Core: Often made from recycled Kraft paper, making it a sustainable choice for “green” building projects.
Ease of Operation: The lighter weight reduces wear and tear on hinges and door closers, extending the life of your hardware.

Technical Specifications
Fire Rating: 20, 45, 60, 90, 120, and up to 180 Minutes
Door Thickness: Standard 1-3/4″ (44.5mm)
Face Sheet Material: Galvanized Steel (A40/G90) or Cold Rolled Steel
Steel Gauge (Face): 18 Gauge (Standard) / 16 Gauge (Heavy Duty)
Core Infill: Resin-impregnated Kraft Paper Honeycomb (1″ cell size)
Edge Construction: Mechanically Interlocked (Hemmed) or Seamless (Epoxy Filled)
Top & Bottom Caps: 16-Gauge Inverted Steel Channels (welded)
Reinforcements: 7-Gauge Hinge, 12-Gauge Closer, and 14-Gauge Lock preps
Finish: Factory-applied Zinc Chromate Primer or RAL Powder Coating
Acoustic Rating: STC (Sound Transmission Class) typically up to 32?34 dB
Max Dimensions: Single: 4’0″ x 10’0″ | Double: 8’0″ x 10’0″ (standard max)
Dimensions: Customisable within certified limits