willbish Posted February 21, 2020 Share Posted February 21, 2020 Bit of an idiots question, and not just applicable to Rationel, but with a cill detail like this: How are the jambs fixed to the threshold? And if they are not, what stops the jambs spreading apart at the bottom before and during installation? J__TECHNICAL_DRAWINGS_Website Sections_FormaPlus TGU_FORMAPLUS TGU-Outward opening doors DOUBLE AND SINGLE DOORS (1).pdf Link to comment Share on other sites More sharing options...
Big Jimbo Posted February 21, 2020 Share Posted February 21, 2020 That looks like a low threshold. It will be screwed up from underneath into each jamb. 1 Link to comment Share on other sites More sharing options...
ProDave Posted February 21, 2020 Share Posted February 21, 2020 That looks like the detail we have. The bottom bar is aluminium and fixed to the two jambs so they won't spread. Ours all came with another piece of wood attached to the bottoms as well, I think for extra strength during transit, that was removed on installation. 1 Link to comment Share on other sites More sharing options...
willbish Posted February 21, 2020 Author Share Posted February 21, 2020 Thanks chaps. I didn't think the threshold would extend the whole width of the door including the frame but that makes sense to me now. Link to comment Share on other sites More sharing options...
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