Ask your local installer to compare an annotated room plan with the exact model's installation drawing. Separate measured finished dimensions from unfinished-wall allowances. A drawing for a similar-looking product is not a substitute for the selected model.
| Record | What to make explicit |
|---|---|
| Measurement reference | Mark whether each dimension is from a finished wall, finished floor or an unfinished surface. Add the survey date. |
| Toilet connection | Attach the selected toilet's outlet and rough-in drawing. Ask the installer to match it to the actual waste connection. |
| Vanity and basin | Record the available opening, basin position and access to connections. Do not rely only on the cabinet's advertised width. |
| Bath or shower area | Compare the chosen unit's outline, entry and service access with the room plan, including doors and neighbouring fixtures. |
| Model-specific services | Ask the installer which water, drainage and electrical details apply. Keep unresolved service questions visible in the buying brief. |
Take this into your next conversation.
- Give every bathroom a stable room reference.
- Keep the latest plan and exact product drawings together.
- Flag dimensions that still need a site check.
- Record who will confirm the interfaces before ordering.