[acerunner]

I would like to install a floating vanity for my bathroom. The counters will be solid surface, quarts or granite. Will a floating vanity (assuming installed correctly) provide enough support for the weight of the counters? What kind of extra structural support might I need?

 

[acerunner]

sorry, forgot dimensions.

Its going to be 48"W x 18"D x ~16"H . It will be installed in a corner, so support on two sides is possible. The counter is about 3/4" thick.

 

[acerunner]

yes, i would like to keep it hidden. I was thinking of using large L brackets, or integrated shelf brackets. Shelf brackets (triangle vs simple L) would be much stronger, but are harder to hide. I have yet to find available brackets in the correct size, 18". I would like to be able to support the entire depth. Largest bracket I've found is 12". Welding my own is an option, but my access to a welder is limited.

My second choice would be a french cleat. How well would a french cleat work in this situation?