Three Eighth Inch Reducer Unfinished Red Oak Trim is great to finish out your flooring project. Reducer transitioning between two floors that’s not the same height. It works great on solid hardwood, engineered hardwood, laminate, tile, and vinyl flooring. Why use coordinating trim that cost way too much. Coordinating trim is just what it sounds like. It doesn’t quite match, it coordinates. Unfinished reducer is great if you are going to Stain it to match trim you already have or flooring you are installing.