diff --git a/resources/views/rd/fire-shutter-drawing/index.blade.php b/resources/views/rd/fire-shutter-drawing/index.blade.php
index d33e5d8f..7104221b 100644
--- a/resources/views/rd/fire-shutter-drawing/index.blade.php
+++ b/resources/views/rd/fire-shutter-drawing/index.blade.php
@@ -1334,7 +1334,7 @@ function renderSbSide() {
                     <!-- Seg2: 상부 스텝 (15mm ←, 수직부 상단에서 내향) -->
                     <rect x="${cx-c15}" y="${cy-c50}" width="${c15}" height="${vt*0.7}" fill="${cCol}" stroke="${cStr}" stroke-width="0.8" opacity="0.85"/>
                     <!-- Seg1: 상부 립 (20mm ↑, 후면벽에서 상향 부착) -->
-                    <rect x="${cx}" y="${cy-c50-c20}" width="${vt*0.7}" height="${c20}" fill="${cCol}" stroke="${cStr}" stroke-width="0.8" opacity="0.85"/>
+                    <rect x="${cx-c15}" y="${cy-c50-c20}" width="${vt*0.7}" height="${c20}" fill="${cCol}" stroke="${cStr}" stroke-width="0.8" opacity="0.85"/>
                     <!-- Seg4: 수평부 (50mm ←, 밑면 선반) -->
                     <rect x="${cx-c50}" y="${cy}" width="${c50+vt}" height="${vt}" fill="${cCol}" stroke="${cStr}" stroke-width="0.8" opacity="0.85"/>
                     <!-- Seg5: 하부 스텝 (15mm ↑, 선반 좌측 끝에서 상향, 린텔과 동일) -->