diff --git a/backend/magic_plan/tests/test_audit_script.py b/backend/magic_plan/tests/test_audit_script.py
index e7160eb7..902aeccc 100644
--- a/backend/magic_plan/tests/test_audit_script.py
+++ b/backend/magic_plan/tests/test_audit_script.py
@@ -1,6 +1,6 @@
 import openpyxl
 from datatypes.magicplan.domain.models import Door, Floor, Plan, Room, Window
-from backend.magic_plan.audit_script import AuditRow, _apply_section_borders, _build_rows, _write_headers
+from backend.magic_plan.audit_script import AuditRow, _apply_section_borders, _build_rows, _write_data_rows, _write_headers
 
 
 def test_build_rows_opening_and_trickle_vent_fields_are_none() -> None:
@@ -276,3 +276,28 @@ def test_apply_section_borders_sets_medium_right_border_on_boundary_columns() ->
     # Assert — non-boundary columns are untouched
     for col in (1, 6, 12, 22):
         assert ws.cell(row=1, column=col).border.right.style is None, f"col {col}"
+
+
+def test_write_data_rows_places_door_data_at_cols_22_to_25() -> None:
+    # Arrange
+    wb = openpyxl.Workbook()
+    ws = wb.active  # type: ignore[assignment]
+    rows = [
+        AuditRow(
+            room_name="Hall",
+            room_width_m=2.0,
+            room_length_m=3.0,
+            room_area_m2=6.0,
+            door_location="Hall",
+            door_width_mm=762.0,
+        ),
+    ]
+
+    # Act
+    _write_data_rows(ws, rows)
+
+    # Assert — door columns at V–Y (22–25), not old positions 28–31
+    assert ws.cell(row=1, column=22).value == "Hall"
+    assert ws.cell(row=1, column=23).value == 762.0
+    assert ws.cell(row=1, column=28).value is None
+    assert ws.cell(row=1, column=29).value is None