Prefinished herringbone wood floor can save you a lot of sanding, polishing, and sealing the knots. Staining cost, also the finishing in the factory, we normally use the UV lacquered, UV oiled, Natural Oiled, wax Oiled, which has the advantages of anti-scratch,anti-stain, waterproofed, hard enough, fire resistant, brushed effect, smoked natural effect and so on many.