| Steel construction | Steel is a durable and fire-resistant material that provides protection against heat, fire, and smoke. |
| Fire-resistant materials | Fire rated steel doors typically have a core made of fire-resistant materials such as gypsum or mineral wool. These materials are designed to prevent the spread of fire and smoke and to provide insulation to reduce heat transfer. |
| Intumescent seals | Intumescent seals are materials that expand when exposed to heat, forming a barrier that helps prevent the spread of fire and smoke. |
| Self-closing and positive latching | UL Listed fire rated steel doors are typically self-closing, meaning they will automatically close when they sense heat or smoke. They also typically have positive latching mechanisms that keep the doors securely closed, even under the pressure of a fire. |
| Label and labeling | UL Listed fire rated steel doors are marked with a label that indicates the door's fire rating and other relevant information. |
| Installation | Fire rated steel doors must be installed in accordance with UL and building codes to maintain their fire resistance and safety. |
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| Door Material | Galvanized Steel |
| Size | customized per drawing |
| Door Panel Thickness | 50mm or 2" inches |
| Frame Depth | standard 110mm or 4 1/4" inches, or customized per drawing |
| Door leaf sheet | 22 Ga.-18 Ga.(/1.0/1.2 mm) galvanized steel sheet |
| Door frame sheet | 16 Ga.-14 Ga.(1.5mm-2.0mm) galvanized steel sheet |
| Accessories | Lock,handle,hinges,door closer,panic bar and other as requested |
| Vision Panel | With or without as requested |
| Frame | knock down / pre-welded, customized... |
| CAD Drawing | available before manufacture |
| Surface treatment | Powder coated or heat transfer printing with rich wooden color |
| Inner filling | Perlite or Insulated rockwool |
| Certificate | UBC 7-2 (1997); UL 10C (2009); UL 10B (2009); CAN/ULC S104 (2010); NFPA 252 (2012) |
