diff --git a/frontend/src/features/triage/TasksView.tsx b/frontend/src/features/triage/TasksView.tsx
index 45c8ed3..2af2451 100644
--- a/frontend/src/features/triage/TasksView.tsx
+++ b/frontend/src/features/triage/TasksView.tsx
@@ -1,4 +1,4 @@
-import React, { useEffect, useState, useRef, useMemo, useCallback } from 'react';
+import React, { useEffect, useLayoutEffect, useState, useRef, useMemo, useCallback } from 'react';
 import { AnimatePresence, motion } from 'framer-motion';
 import {
   Check,
@@ -605,17 +605,33 @@ export const TasksView: React.FC<TasksViewProps> = ({
         const multi = tops.size > 1;
         setKanbanMultiRow(multi);
         setKanbanPerRow(colTops.filter((t) => t === Math.min(...colTops)).length);
-        if (multi) return;
-        // One row: take back what still overflows (paddings), so the page does not scroll
-        const over = area ? area.scrollHeight - area.clientHeight : document.documentElement.scrollHeight - window.innerHeight;
-        if (over > 0) setKanbanColHeight((h) => (h ? Math.max(KANBAN_MIN_COL_HEIGHT, h - over) : h));
       });
     };
     fit();
+    // The board's width animates when it is stretched to full width or back: measure again at the end
+    const board = kanbanBoardRef.current;
+    const onTransitionEnd = (e: TransitionEvent) => {
+      if (e.target === board) fit();
+    };
     window.addEventListener('resize', fit);
-    return () => window.removeEventListener('resize', fit);
+    board?.addEventListener('transitionend', onTransitionEnd);
+    return () => {
+      window.removeEventListener('resize', fit);
+      board?.removeEventListener('transitionend', onTransitionEnd);
+    };
   }, [isKanban, isKanbanWide, boardColumns.length, selectedListId, loading]);
 
+  // One row on the desktop: take back what still overflows (paddings), so the page does not scroll. Measured
+  // only once the new height is on the page; measured right away, the old layout (e.g. two tall rows before
+  // stretching the board to full width) counted as overflow and squeezed the columns to their minimum.
+  useLayoutEffect(() => {
+    if (!kanbanColHeight || kanbanMultiRow || kanbanPhoneSnap) return;
+    const area = kanbanBoardRef.current?.closest<HTMLElement>('[data-app-scroll]');
+    if (!area) return;
+    const over = area.scrollHeight - area.clientHeight;
+    if (over > 0) setKanbanColHeight((h) => (h ? Math.max(KANBAN_MIN_COL_HEIGHT, h - over) : h));
+  }, [kanbanColHeight, kanbanMultiRow, kanbanPhoneSnap]);
+
   // Several rows: one wheel step moves to the next row (or back up to the previous row / the page top),
   // smoothly. The browser's own snapping goes back to the nearest point, so a wheel step shorter than a row
   // never got past the first one. A column whose cards can still scroll that way scrolls first; Ctrl +