I've never heard someone in woodworking call finished wood "treated". That would be really odd, given that treated wood is a specific term of art. Plainly oile

I've never heard someone in woodworking call finished wood "treated". That would be really odd, given that treated wood is a specific term of art. Plainly oiled wood is pretty normal, and isn't going to do anything to protect against rot (because it doesn't need to indoors).