assets/scss/common/grid.scss

@@ -21,6 +21,15 @@
     display: none;
   }
 
+  &-no-scroll-y {
+    .tui-grid-rside-area {
+      .tui-grid-header-area,
+      .tui-grid-summary-area {
+        margin-right: 0 !important;
+      }
+    }
+  }
+
   &-rside-area {
 
     .tui-grid-header-area,

components/common/Grid.vue

@@ -174,6 +174,10 @@ export default {
 				this.gridScrollTop = e.target.scrollTop;
 				this.gridScrollLeft = e.target.scrollLeft;
 			});
+
+			if (!(this.scrollBody.scrollHeight > this.scrollBody.clientHeight)) {
+				this.gridInstance.$el.getElementsByClassName('tui-grid-content-area')[0].classList.add('tui-grid-no-scroll-y');
+			}
 		}
 	},
 	methods: {