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How thick does a fire door have to be?

Guest MikeMoo

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Guest MikeMoo

please can you advise .
how thick would a solid oak door panel need to be to give 1/2 hour fire protection and is there a minimum depth of groove. I would appreciate your expertice in these matter.
regards Mike

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Assuming the door is not a certified fire door then you need to upgrade the door and frame to meet a nominal fire resistance. The thickness of the panel is only one consideration and the gaps around the door are another weak point. The normal accepted thickness of a half hour fire door is 44mm but that can vary depending on the construction and there is no minimum thickness of panels for a FD30 door.

Check out http://www.fire-door-services.com/Downloads/Trada_FireDoorsetsbyUpgrading_000.pdf for information on upgrading fire doors.

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