Hi All, Currently applying for planning permission for a 270m2 two storey house in cork. However, not 100% on whether to go with a concrete slab first floor or a suspended timber first floor. Concrete slab would be more expensive but how much more per m2?? Total area of first floor would be 125m2. Also, what are the main advantages/disadvantages of having a concrete slab first floor rather than a timber floor?? Any info would be much appreciated.