This cabinet perfectly matches the vanity I also bought from Wayfair. I had it installed by a tasker from a service called Taskrabbit.com.  It took him 10 minutes to mount it. I did contact Wayfair later to see if there were additional shelves available and was told my customer rep that he would contact the manufacturer and get back to me. This never happened, but it is fine as is actually; I just store a lot of tall things in it.