Width of cavity for drain and trap
I'm planning a bath vanity. I want to put 2 cabinets in with a gap between them, a counter over, and a vessel sink above the gap. The faucet will be wall mounted.
What is the minimum width needed in the gap between the cabinets for the drain and valves?
I'm hoping for 12 inches, but I'm guessing that's not enough.
(I appreciate your input. I will ask my plumber too, but I'd rather not look totally stupid right off the bat!)