diff --git a/src/components/floor-plan/modal/basic/step/Trestle.jsx b/src/components/floor-plan/modal/basic/step/Trestle.jsx
index 17279d83..19169e4f 100644
--- a/src/components/floor-plan/modal/basic/step/Trestle.jsx
+++ b/src/components/floor-plan/modal/basic/step/Trestle.jsx
@@ -413,7 +413,7 @@ const Trestle = forwardRef((props, ref) => {
 
       setCvrYn(constructionList[index].cvrYn)
       setSnowGdPossYn(constructionList[index].snowGdPossYn)
-      setCvrChecked(false)
+      setCvrChecked(true)
       setSnowGdChecked(false)
     }
   }
diff --git a/src/hooks/module/useModuleTrestle.js b/src/hooks/module/useModuleTrestle.js
index fc588d09..0d219401 100644
--- a/src/hooks/module/useModuleTrestle.js
+++ b/src/hooks/module/useModuleTrestle.js
@@ -61,7 +61,7 @@ export function useModuleTrestle(props) {
   const [lengthBase, setLengthBase] = useState(0)
   const [hajebichi, setHajebichi] = useState(0)
   const [cvrYn, setCvrYn] = useState('N')
-  const [cvrChecked, setCvrChecked] = useState(false)
+  const [cvrChecked, setCvrChecked] = useState(true)
   const [snowGdPossYn, setSnowGdPossYn] = useState('N')
   const [snowGdChecked, setSnowGdChecked] = useState(false)
   const [eavesMargin, setEavesMargin] = useState(0)
@@ -88,7 +88,7 @@ export function useModuleTrestle(props) {
     setKerabaMargin(selectedRoof?.kerabaMargin ?? 0)
     setLengthBase(Math.round(selectedRoof?.length ?? 0))
     setCvrYn(selectedRoof?.construction?.cvrYn ?? 'N')
-    setCvrChecked(selectedRoof?.construction?.cvrChecked ?? false)
+    setCvrChecked(selectedRoof?.construction?.cvrChecked ?? true)
     setSnowGdPossYn(selectedRoof?.construction?.snowGdPossYn ?? 'N')
     setSnowGdChecked(selectedRoof?.construction?.snowGdChecked ?? false)
     setTrestleDetail(selectedRoof?.trestleDetail)