This vanity is replacing 'old school' oak cabinet which has water damage. The color is up to date and works perfectly with existing tile. We sacrificed a bit of storage space which is worth it for the self closing hinges. The marble top is well finished with a nice beveled edge. The sink is standard porcelin.The back has an opening about 8" square but the back can be completely removed too. As far as I can determine the entire cabinet is wood. Dove tail joints in cabinet drawers,too. This came from China extremely well packed, delivery service exceeded expectations. A small flaw on the lower base where 3, 1/4 inch spots need a paint touch up. I've had Ethan Allen furniture delivered with greater flaws. Love the cabinet on legs,too. Modern and updated.