The dimensions and details that decide
Sink-center spacing is the headline number: too close, and shoulders negotiate every morning; the guideline minimums keep elbows civil, and a few inches beyond them is where the double earns its plumbing. Edge distances matter equally, a center crowded against a side wall gives one user a corner station and a permanent grievance.
Below the counter, drawer geometry does quiet work: two users mean twice the daily inventory, and drawers outperform doors for morning access. Watch the center stack where two banks meet, colliding hardware and hinges that block neighbors are ordinary in cheap layouts, and watch plumbing's claim on the center cabinets, which trap-and-supply clearances partially consume.
Above the counter, per-station mirrors and face lighting beat one shared band: each user gets light at their own face height, and the wall reads as two stations by design. Outlets belong inside or beside each station's territory at device height. And leave real cleaning gaps where cabinetry meets walls and floors; the double vanity's length makes its perimeter the room's longest dust ledge.
