Currently there's a brown carpet, I was thinking we could tile but then there are what look like fairly nice wide original floorboards under the carpet. Was thinking we could sand & varnish. Would it be a bad idea round the toilet and sink? Would water splashes leave marks? Wouldn't be too cold I think as is directly over the basement where our oil boiler is and therefore is quite warm. Any particular product we could finish them with to make them wipeable?