In which cases a steel door can be shortened

How a steel door can be shortened depends on its design. Often the door leaves consist of two sheets with an empty or filled cavity. In some door models, a reinforcement plate several millimeters thick is attached to the bottom edge of the door, not others. Not all steel doors can be shortened.

Fire protection function and door construction

You must remove a steel door and remove all flammable materials at the workplace before welding and cutting.
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