diff --git a/src/components/TableGrid.vue b/src/components/TableGrid.vue
index 2d4ba94..c03b1d3 100644
--- a/src/components/TableGrid.vue
+++ b/src/components/TableGrid.vue
@@ -720,7 +720,9 @@ function selectColumn(c: number, e?: MouseEvent) {
   const t = table.value;
   if (!t) return;
   clearFlow();
-  const a = { col: c, row: 0 };
+  // Shift extends from the current anchor's column to the clicked one
+  const from = e?.shiftKey && mine.value ? mine.value.anchor.col : c;
+  const a = { col: from, row: 0 };
   const f = { col: c, row: t.rows - 1 };
   if (e && (e.metaKey || e.ctrlKey)) store.addRangeToSelection(props.tableId, a, f);
   else store.setSelection({ tableId: props.tableId, anchor: a, focus: f });
@@ -730,7 +732,9 @@ function selectRow(r: number, e?: MouseEvent) {
   const t = table.value;
   if (!t) return;
   clearFlow();
-  const a = { col: 0, row: r };
+  // Shift extends from the current anchor's row to the clicked one
+  const from = e?.shiftKey && mine.value ? mine.value.anchor.row : r;
+  const a = { col: 0, row: from };
   const f = { col: t.cols - 1, row: r };
   if (e && (e.metaKey || e.ctrlKey)) store.addRangeToSelection(props.tableId, a, f);
   else store.setSelection({ tableId: props.tableId, anchor: a, focus: f });