The micro-groove is a groove of 1/16 “, machined on the end of through doors. This groove trying to hide the lacquer cracks to dimensional changes of the wood. Wood or MDF are living materials that vary with changes in humidity. Micro-Groove is a process that The Saint-Georges Doors developed to prevent this problem. See also MDF 2 pieces.
vailable with models #520, #530, #550, standard outside edge.