Solid surface countertops are the best for bathroom vanities! You can build them so that the sinks are a part of the countertop or as in this case, you can glue porcelain sinks to the underside of the countertops. Though you do have to have a certain amount of specialized tools to work with solid surface material, the great results you get in the end may be worth it. The process of building with solid surface is an interesting and challenging one and in this video I go through all the steps of completing a two sink vanity countertop from beginning to end.