Refinishing these 5" walnut hardwood floors involved sanding the surface to remove old finish and imperfections, followed by applying a natural oil finish. This process enhances the wood's rich, dark tones and highlights its unique grain patterns. The client not only revitalizes the appearance of the floors but also extended their lifespan, making them more durable and easier to maintain. They were pleased with the smooth, even finish that brings out the natural beauty of their walnut wood floors.