Hi, Am I alright to put ceramic floor tiles straight onto an upstairs chipboard floor ? The floor seems sound although I guess it would benefit from adding some screws to firm it down completely. I would, normally, put down 18mm ply and tile onto that but that would cause a step up into the en-suite from the bedroom - not aesthetically pleasing ! I suppose I could put down a thin hardboard covering but will it be woth it ?
Cheers