diff --git a/src/components/fabric/QPolygon.js b/src/components/fabric/QPolygon.js
index b89e9daf..189072db 100644
--- a/src/components/fabric/QPolygon.js
+++ b/src/components/fabric/QPolygon.js
@@ -543,8 +543,19 @@ export const QPolygon = fabric.util.createClass(fabric.Polygon, {
 
       const degree = Big(Math.atan2(dy.toNumber(), dx.toNumber())).times(180).div(Math.PI).toNumber()
 
+      // 이동/undo/redo 시 기하학 drift(round-off)로 text 수치가 변동되지 않도록
+      // 저장된 attributes 우선 사용. 현재 corridorDimension.column에 맞춰 값 결정:
+      // - realDimension(배치면 메뉴): actualSize 우선
+      // - corridorDimension(지붕덮개 메뉴): planeSize 우선
+      const preservedActualSize = this.lines[i]?.attributes?.actualSize
+      const preservedPlaneSize = this.lines[i]?.attributes?.planeSize
+      const currentColumn = (typeof window !== 'undefined' && window.__currentCorridorColumn) || 'corridorDimension'
+      const displayValue = currentColumn === 'realDimension'
+        ? (preservedActualSize != null ? preservedActualSize : preservedPlaneSize != null ? preservedPlaneSize : length)
+        : (preservedPlaneSize != null ? preservedPlaneSize : preservedActualSize != null ? preservedActualSize : length)
+
       // Create a new text object if it doesn't exist
-      const text = new fabric.Text(length.toString(), {
+      const text = new fabric.Text(displayValue.toString(), {
         left: midPoint.x,
         top: midPoint.y,
         fontSize: this.fontSize,
diff --git a/src/store/settingAtom.js b/src/store/settingAtom.js
index 32a620a1..decf6168 100644
--- a/src/store/settingAtom.js
+++ b/src/store/settingAtom.js
@@ -219,7 +219,12 @@ export const corridorDimensionSelector = selector({
   key: 'corridorDimensionSelector',
   get: ({ get }) => {
     const settingModalFirstOptions = get(settingModalFirstOptionsState)
-    return settingModalFirstOptions.dimensionDisplay.find((option) => option.selected)
+    const selected = settingModalFirstOptions.dimensionDisplay.find((option) => option.selected)
+    // Fabric 클래스(QPolygon) 등 React hook 외부에서 현재 column 참조용
+    if (typeof window !== 'undefined' && selected) {
+      window.__currentCorridorColumn = selected.column
+    }
+    return selected
   },
   set: ({ set }, newValue) => {
     //0 : 복도치수 , 1 : 실제치수
@@ -229,6 +234,10 @@ export const corridorDimensionSelector = selector({
         ...prev,
         dimensionDisplay: prev.dimensionDisplay.map((item, index) => {
           if (index === newValue) {
+            // Fabric 클래스(QPolygon) 등 React hook 외부에서 현재 column 참조용
+            if (typeof window !== 'undefined') {
+              window.__currentCorridorColumn = item.column
+            }
             return { ...item, selected: true }
           } else {
             return { ...item, selected: false }