diff --git a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
index 8c442b22..58ffcea5 100644
--- a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
+++ b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
@@ -261,15 +261,19 @@ export default function PlacementShapeSetting({ id, pos = { x: 50, y: 180 }, pla
     if (addedRoofs.length > 0) {
       const raftCodeList = findCommonCode('203800')
       setRaftCodes(raftCodeList)
+      // [2026-06-02] addedRoofs[0]에서 받은 roofSizeSet을 그대로 사용 (basicSetting으로 덮어씌우지 않기)
       setCurrentRoof({
         ...addedRoofs[0],
         planNo: currentCanvasPlan?.planNo || planNo,
-        roofSizeSet: String(basicSetting.roofSizeSet),
-        roofAngleSet: basicSetting.roofAngleSet,
+        roofSizeSet: String(addedRoofs[0].roofSizeSet),
+        roofAngleSet: addedRoofs[0].roofAngleSet,
       })
+      // 입력모드도 함께 동기화
+      setInputMode(addedRoofs[0].roofSizeSet)
     } else {
       /** 데이터 설정 확인 후 데이터가 없으면 기본 데이터 설정 */
       setCurrentRoof({ ...DEFAULT_ROOF_SETTINGS })
+      setInputMode(DEFAULT_ROOF_SETTINGS.roofSizeSet)
     }
   }, [addedRoofs])