The Fire Doors are made out of steel fire doors and wooden fire doors and these two fire doors have different details on the installation method.
First of all, when the Wooden Fire Door is installed, the frame size should be less than 20mm, and the door frame is buried under the ground 20mm. The door frame should be fixed firmly with the wall, and the vertical Angle will be vertical. It is necessary to pay more attention to that square and the other than to cut the corners
Secondly, during the installation process, considering the bending deformation of the door frame, should be supported in the width direction of the door frame, the door frame is buried under the ground 20mm, and the door frame is welded with the embedded parts on the wall.
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