UK Bathroom Vanity Unit Sizes: Planning 600, 800 and 1200 mm Ranges
UK buyers commonly shortlist vanity units by a nominal millimetre width. The installation decision still depends on the exact cabinet, worktop and basin dimensions, finished wall opening, pipework, internal storage, fixing and door or drawer travel.
Nominal width is a range-planning label
| Nominal width | Typical shortlist | Critical checks |
|---|---|---|
| 600 mm | Compact cloakrooms, en-suites and single-basin ranges | Usable bowl, tap position, trap cut-out and drawer space |
| 750–800 mm | Main bathrooms needing more worktop or storage | Actual cabinet width, worktop overhang and wall clearance |
| 900 mm | Broader single-basin and project schedules | Basin offset, pipework and internal drawer layout |
| 1200 mm | Large single or double-basin programmes | Basin count, tap centres, structural support and delivery route |
The table describes planning uses, not a universal dimensional standard. A 600 mm label can accompany a cabinet body below 600 mm, while the worktop or basin may set the final envelope.
Coordinate the complete vanity unit
Cabinet, worktop and basin
List each component separately. State the exact finished width, depth and height, basin type, tap-hole arrangement, waste and any parts supplied by others.
Pipework and storage
Show the waste, trap and isolation valves on the internal elevation. A late trap position can remove a drawer or make maintenance impractical.
Wall-hung fixing
Confirm the wall build-up, reinforcement, mounting rail or brackets, fasteners and installation responsibility. Do not infer a fixing solution from the product photograph.
Door and drawer clearance
Test the open position against the WC, shower screen, door swing, towel rail and adjacent furniture. Include handles or finger-pull access in the review.
Exact-model references
Laguna Mark II 600 mm
The nominal width accompanies a published 590 × 550 × 460 mm cabinet record; verify the full supplied scope.
Laguna Mark II 900 mm
Compare its 890 × 550 × 460 mm cabinet record with the site opening and selected basin/worktop.
Laguna Mark II 1200 mm
Use the exact 1190 × 550 × 460 mm cabinet record rather than assuming the nominal width is the body width.
UK buyer approval checklist
- Exact cabinet, worktop and basin dimensions in millimetres.
- Finished wall opening, tolerances, fillers and tile build-up.
- Pipework zone and usable internal storage.
- Wall construction, reinforcement and fixing responsibility.
- Sample finish, hardware and operation review.
- GB or Northern Ireland destination and product-role documentation.
- Carton artwork, instructions, spares and batch schedule.
Frequently asked questions
Is a 600 mm vanity unit always exactly 600 mm wide?
No. Treat 600 mm as a nominal class until the cabinet, worktop and basin drawings state their exact dimensions.
Should a wall-hung vanity be fixed directly to plasterboard?
The correct fixing depends on the wall system, loads and manufacturer instructions. The project professional or installer should confirm reinforcement and fasteners.
Send a UK vanity unit schedule
Review boundary: this is procurement guidance. The selected model, approved drawing, site professional and applicable destination requirements govern the final decision.