Prometheus Posted September 27, 2021 Report Share Posted September 27, 2021 It is generally eccepted a 30 minute timber door should be 44mm and 60 minute timber should be 54mm in thickness, what about a metal door leaf? I have searched the forum as I'm sure this has been asked before but could not find the answer. Thanks Quote Link to comment Share on other sites More sharing options...
Neil ashdown Posted September 27, 2021 Report Share Posted September 27, 2021 Metal fire doors do not have the same inherent properties of insultation and char behaviour as timber fire doors, therefore thickness alone is not necessarily a guide to fire performance. Contact the DHF https://www.dhfonline.org.uk/ for a copy of the guidance documents 'Metal Fire Door-set Verification' and ' Metal fire doors Code of Practice' Quote Link to comment Share on other sites More sharing options...
Prometheus Posted October 1, 2021 Author Report Share Posted October 1, 2021 Thanks, already have those documents, just wanted short straight answer ? Quote Link to comment Share on other sites More sharing options...
Neil ashdown Posted October 4, 2021 Report Share Posted October 4, 2021 Ha Ha......This is fire doors we are talking about. Thanks. Quote Link to comment Share on other sites More sharing options...
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