Dear architects, regarding the room layout of the apartments, please base it on the specified mix. For low/mid-rise buildings, place the smallest units as 1.5 rooms (1.5kk), and for high-rise buildings, the smallest unit should be 2 rooms (2kk). Regarding the thickness of horizontal partitions, this depends on the proposed structural system and also the spans. At this stage of the project, it can only be estimated.