Vanity
In CNC millwork and cabinet manufacturing, a vanity is a finished cabinet assembly built to support a sink, conceal plumbing, and integrate countertops, drawers, doors, and hardware. It is typically produced as nested sheet parts, face frames, panels, and toe-kick components, machined for sink cutouts, boring, pocketing, and joinery before assembly.
On the shop floor, vanity production starts with a cut list that breaks the assembly into carcass parts, face frames, drawer boxes, and toe kicks. CNC routers profile panels, bore hinge and shelf holes, pocket for joinery, and machine sink cutouts based on the sink template and faucet rough-in location. The critical focus is controlling the sink-center position, cabinet squareness, and plumbing-clearance zones because these determine whether the top, basin, and supply lines fit during installation. Tolerances stack up across panel thickness, edge banding, and hardware, so machinists verify openings and carcass dimensions against the countertop overhang and wall conditions. In estimating and scheduling, the vanity refers to the entire bathroom cabinet package, not just the box, meaning all components must be coordinated for assembly, finishing, and on-site installation without forced rework.
- Sink cutout misalignment: The undermount template is transferred incorrectly, shifting the CNC opening relative to faucets and drawers. This creates interference with drawer boxes, false fronts, or the basin during installation.
- Plumbing interference: The rear rail, drawer back, or shelf is not relieved for traps, shutoffs, or drain stubs. Field-cut modifications then weaken the carcass and delay installation while violating the original joinery.
- Tolerance stack-up at install: Cabinet width, filler strips, wall out-of-plumb, and countertop overhang accumulate error. A vanity that fits perfectly in the shop can bind on-site, especially with scribed panels or out-of-square rooms.
In millwork, is a vanity a cabinet or a fixture?
A vanity is typically a cabinet assembly or casework unit designed to support and house a sink, not the plumbing fixture itself. The sink, faucet, and drain are separate components that are installed into or onto the vanity structure.
What CNC operations are typical for vanity production?
Typical CNC operations include panel profiling, boring, pocketing, sink cutout machining, hinge cup drilling, and edge preparation for banding. These operations are programmed from the cabinet design to ensure accurate joinery, hardware placement, and sink openings.
What tolerance matters most on a vanity?
The most critical tolerances are the sink opening location, overall cabinet squareness, and plumbing-clearance dimensions. These control fit, serviceability, and final installation success, because errors in these areas lead to interference with the basin, drawers, or supply lines.