Hi Guys, I've read many flooring posts about preferences people have on placing base cabinets over subfloor or over tile. My 'dumb' question is, if I install the hardiboard and tile over the entire kitchen, how do I anchor the island cabinets? Originally, my thought was to put down the hardiboard, then screw 2x4s (laying flat) where the island cabinet would go so I had a way to anchor the cabinet to the floor. Would you still advise the same thing with over the porcelain tile? Drill through the tiles? If it matters, the island will contain a gas cooktop.