Why vanity sizing is a usability decision, not just a fit decision
Most vanity mistakes happen when the vanity “fits” on paper but doesn’t work in motion. In New Zealand homes, bathrooms often have tight circulation paths, inward-swinging doors, and fixed plumbing points that limit where you can place the cabinet. A vanity can technically fit and still feel cramped every single day.
Width: choose based on storage need and basin behaviour
Common vanity widths in NZ projects often fall around 600mm, 750mm, 900mm, 1200mm and 1500mm. The smaller widths are usually chosen for tight bathrooms, but the trade-off is bench space around the basin and the amount of usable drawer storage. If the household uses the vanity as the main storage zone for toiletries, hair tools, and cleaning items, going one size wider often reduces clutter on the benchtop and improves how the bathroom stays tidy.
Depth: the hidden driver of comfort in small bathrooms
Depth is where many renovations go wrong. A vanity that is 500mm deep can feel generous, but in compact bathrooms it steals valuable standing and passing space. Shallower depths (often around 450mm) can dramatically improve comfort near the vanity and toilet, especially when the room is narrow. The key is making sure the basin still provides enough bowl area and tap reach to control splashing, because shallow vanities paired with the wrong basin/tap combo often create constant water mess.
Height: don’t assume every “standard” feels standard
Most modern bathroom vanities sit roughly in the 800–850mm range, but the “right” height depends on who uses the bathroom and what basin type is chosen. Above-counter basins raise the effective hand-washing height, which can feel great for taller adults but uncomfortable for children. Integrated basins tend to keep the working height more predictable. If you’re renovating for resale, staying near the common comfort band usually avoids extremes that feel “off” to most buyers.
Plumbing reality: vanity size must match pipe locations and access
In many Hamilton renovations, plumbing locations don’t land exactly where modern drawer systems want to be. This is where cabinet choice matters: full drawers are great until the trap and waste line demand space. Vanities that provide a designed plumbing void, or a mix of drawers and doors, can avoid awkward on-site cutting that compromises durability. The goal is a vanity that still allows future access to valves and connections without dismantling half the cabinet.
A practical way to avoid regret before ordering
Stand in the bathroom and mark the vanity footprint on the floor with tape. Then simulate the real movements: opening the door, stepping up to the basin, turning toward the toilet, and opening drawers. This quick test catches the most common issues—drawer/door clashes, tight standing zones, and circulation pinch points—before you commit to a size that “fits” but doesn’t function.