Milton Walnut is a 9" x 47" porcelain tile. The face carries the grain and knotting of sawn timber. A matte surface holds light rather than reflecting it. A PEI 4 rating suits heavy residential and light commercial floors. It carries an R9 slip rating, normal for a dry interior floor. It is frost resistant, so it can run from an interior floor onto a covered porch or patio. A box holds 4 pieces and covers 12 square feet. Made in Spain.