Here you see Dad's latest project --the cabin had a bathroom split between two small rooms. A bathtub and counter in one, a toilet and sink in the other. Dad decided to make them into two complete bathrooms so there would be more 'facilities' when we are all here together. So, first it required tearing out the toilet, sink, shower etc. and taking up the flooring--including the sub-flooring because there had been some water damage.
Here you see one of the completed bathrooms. It's too small to stand inside and get a good picture--very efficient--but small.