Bare, unfinished European Oak is a greyish biscuit colour. The grain and depth of colour is completely transformed with a clear oil, wax or lacquer and a golden patina / colouring develops. This effect is enhanced with time and exposure to sunlight. The beautiful natural grey hues can be retained by specifying one of our natural finishes - scroll down to view. This is our character Floor Sanding Merton flooring in another beautiful bathroom installation with a beautiful bespoke natural grey finish - basically a more accentuated natural looking (grey/white) stain enhance the natural light grey hues and eliminates yellowing (associated with a clear oil / lacquer finish).