Start with one stable reference per window and record the intended use before choosing fabric. Keep the opening size, proposed track or pole and required finished curtain dimensions separate. Have the responsible measurer confirm the basis with the maker; a window width alone is not a finished-curtain specification.
| Record | What to make explicit |
|---|---|
| Window identity | Link the room name, window reference, annotated photo and plan revision. Give adjacent windows separate references even when they are intended to match. |
| Use and layers | Describe daytime privacy, night-time privacy and light-control needs in plain language. List sheer and main-curtain layers separately and mark which remain undecided. |
| Measurement basis | Label opening dimensions, track or pole dimensions and proposed finished drop as different fields. State the units, measuring reference, survey date and who must verify each value. |
| Opening and space | Mark one-way or split opening and the intended resting side when open. Annotate nearby handles, doors and furniture for the installer to review; do not invent clearance allowances. |
| Decision status | Separate reference-only dimensions from checked dimensions. If the heading, mounting proposal or track changes, return the affected window to the measurer before releasing its order details. |
Take this into your next conversation.
- Use the same window references on drawings, samples and quotations.
- Attach a marked photo rather than an unlabelled room image.
- Resolve who measures and who confirms the finished size.
- Keep any unverified window out of the final size approval.