I had a tasker install a vanity and they did not remove the bead board on the back which created a large space behind the vanity to move the plumbing and evything ot correct it would be costly. Does nayone know where I can get a 1.8 or 2inch thick carrara Marble back slpash it needs to be 42 inches long to span the back wall . I rally do not care how tall it is i just need to cover the space between the vanity and wall.