We do not recommend installing a wooden floor with a wooden surface in the bathroom at present.
Ceramic composite tiles, on the other hand, can be laid very well in wet zone 2 in wet rooms. Wet zone 2 is, for example, a toilet without a shower and floor drain. The wet room must have an approved waterproofing layer and therefore it is important to follow Industry Rules for waterproofing layers in wet rooms. Ceramic composite floor can advantageously be glued to the waterproofing layer with Bona Titan or laid floating. All wall joints must be sealed with silicone suitable for bathrooms.