Guest gavin Posted March 2, 2021 Report Share Posted March 2, 2021 We are about to have a couple of 35mm FD30 doors fitted. By virtue of its size I guess its ok to have 3*3inch hinges(fire rated)fitted as opposed to the 4in hinges for 44mm doors please? Quote Link to comment Share on other sites More sharing options...
Neil ashdown Posted March 3, 2021 Report Share Posted March 3, 2021 You will need to read the installation instructions for the particular fire door leaf to find out what hinge type, size and fixing positions are necessary. As they are new doors, the door leaf supplier/manufacturer is obliged to provide installation instructions. Quote Link to comment Share on other sites More sharing options...
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