IanS Posted April 11, 2023 Report Share Posted April 11, 2023 Could you please help me clarify the following. In the communal hallways of a block of flats there are doors with an FD30 certification label on their top edge. The doors then also have intumescent seals and cold smoke brushes set into the door frame. My question is whether that door should be properly referred to as being FD30, FD30(s), upgraded FD30(s) or something else. Quote Link to comment Share on other sites More sharing options...
AnthonyB Posted April 12, 2023 Report Share Posted April 12, 2023 FD30s. The certified door blank (& presumably matched frame and ironmongery) and intumescent seals make it FD30, the cold smoke brushes FD30s. Quote Link to comment Share on other sites More sharing options...
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