Bespoke Double Vanity Units

A double vanity gives two people their own basin, mirror and storage — the single biggest quality-of-life upgrade in a shared bathroom or principal en-suite. Here is how a bespoke twin-basin unit is sized, spaced and built to your exact wall.

When a Double Vanity Is Worth It

The case for two basins is simple: shared bathrooms have a rush hour, and a single basin turns it into a queue. A double vanity removes that friction entirely, and it does more than add a second bowl — it gives each person their own mirror, their own tap and their own storage. In a principal en-suite it is close to standard now; in a family bathroom it is the change people notice every single morning.

The catch with off-the-shelf double units is width. They come in a handful of fixed sizes, and a shared bathroom wall almost never matches one — so the unit either leaves dead space or does not fit at all. A bespoke double vanity is drawn to your exact wall, so the full width is used and the two bowls are spaced properly.

How Wide Does a Double Vanity Need to Be?

Two basins need room to feel like two basins rather than a crowded pair. As a rule of thumb, a comfortable twin-bowl layout starts around 1600mm and reads best from about 1800mm upward, where each person gets a genuine zone of counter beside their tap. Below that, a single basin with a wide surface is usually the better answer. Lave builds double vanities to any width up to 2400mm, so a full-wall run is entirely possible where the room allows — see the full range in our sintered stone vanity size guide.

Because the unit is made to measure, the bowls do not have to sit at fixed centres either. They can be pushed towards the ends to open up shared counter in the middle, or brought in to leave a run of surface at one side — whatever the room and the plumbing want.

Two Integrated Bowls, One Continuous Surface

Each basin is formed within the sintered stone top as part of a single slab — not two separate bowls dropped into a counter. There is no join between bowl and surface, no silicone seam around either basin, and nothing for limescale or grime to collect in. Across a wide double top used by two people daily, that seamless surface is the difference between a vanity that still looks resolved in five years and one that shows every join. Sintered stone is non-porous, scratch-resistant, heat-tolerant and never needs sealing; the material case is in why sintered stone.

Plumbing and Practicalities

A double vanity needs two sets of hot and cold feed and two wastes, so it is worth confirming the layout with your plumber before the wall is closed up. Lave supplies a technical drawing showing bowl centres, waste positions and fixing points, so first-fix plumbing can be set exactly where the finished unit needs it. Getting that right early is the one thing that keeps a twin-basin install straightforward.

Specifying Yours

The brief is the same four decisions as any Lave vanity — width and depth, bowl configuration (here, two bowls and their spacing), stone finish and cabinet veneer — and you receive a fixed quote, a drawing to approve and a confirmed 7 to 12 week lead time before anything is made. The order of decisions is set out in how to spec a bespoke bathroom vanity, and the sizing logic in how to choose the right basin size.