[zeuss]

How is it done? The floating vanity cabinet is all the rage right now, but I'm not sure how to do it. My SIL wants that look and I told her I've seen Ikea kitchen cabinets used. Do you use a 12" and just add some backing to bring it out deep enough for vessels sinks or do you use 24" deep and cut it down? How wide is a vanity usually?

[splatgirl]

Done. I think pics of mine are hanging around here someplace if you search. I used the deep over the fridge cabinet hung from hanging rail at the back and then lag bolted through the sides of the carcass into a stud/wall on one side and a base cabinet on the other. They're holding up 2" thick concrete counter and a big vessel sink and doing just fine.
If you want true floating, ie. with nothing to attach to on either side, think brackets attached to the wall pre-sheetrock that the cabinets can "float" on...or at least this is how it's done in the non-IKEA hacking world

[hrhokie]

I used the Effectiv line instead of kitchen cabinets (to have color option other than birch or white without cutting cover panels).

Effectiv as Mod Vanity