For domestic use, we urge to oil hardwood floors every 2 decades, you may want to do this earlier depending on how much your flooring is used.
This also adds another layer of security from daily foot traffic or day-to-day mishaps that may damage your flooring.
If you're purchasing a variety of flooring which comes oiled, we recommend oiling the floor again once it's been laid.
This is because your floors might have been stored for quite a few months, and maybe a little dry. Re-staining your new floors tops up the small moisture that's necessary. As a result, you might also add more color to the finish and increase its durability.