diff --git a/app/Services/Quote/Handlers/KyungdongFormulaHandler.php b/app/Services/Quote/Handlers/KyungdongFormulaHandler.php
index 1d6fe4d..151daa9 100644
--- a/app/Services/Quote/Handlers/KyungdongFormulaHandler.php
+++ b/app/Services/Quote/Handlers/KyungdongFormulaHandler.php
@@ -336,7 +336,9 @@ public function calculateSteelItems(array $params): array
         $height = (float) ($params['H0'] ?? 0);
         $quantity = (int) ($params['QTY'] ?? 1);
         $modelName = $params['model_name'] ?? $params['product_model'] ?? 'KSS01';
-        $finishingType = $params['finishing_type'] ?? 'SUS';
+        $rawFinish = $params['finishing_type'] ?? 'SUS';
+        // DB에는 'SUS', 'EGI'로 저장 → 'SUS마감' → 'SUS' 변환
+        $finishingType = str_replace('마감', '', $rawFinish);
 
         // 절곡품 관련 파라미터
         $caseSpec = $params['case_spec'] ?? '500*380';
@@ -515,6 +517,23 @@ public function calculateSteelItems(array $params): array
      * @param  int  $quantity  수량
      * @return array 가이드레일 항목 배열
      */
+    /**
+     * 모델별 가이드레일 규격 매핑
+     *
+     * BDmodels 테이블 기준:
+     * KSS01/02, KSE01, KWE01 → 120*70 / 120*120
+     * KTE01, KQTS01           → 130*75 / 130*125
+     * KDSS01                  → 150*150 / 150*212
+     */
+    private function getGuideRailSpecs(string $modelName): array
+    {
+        return match ($modelName) {
+            'KTE01', 'KQTS01' => ['wall' => '130*75', 'side' => '130*125'],
+            'KDSS01' => ['wall' => '150*150', 'side' => '150*212'],
+            default => ['wall' => '120*70', 'side' => '120*120'],
+        };
+    }
+
     private function calculateGuideRails(
         string $modelName,
         string $finishingType,
@@ -529,16 +548,19 @@ private function calculateGuideRails(
             return $items;
         }
 
+        $specs = $this->getGuideRailSpecs($modelName);
+        $wallSpec = $specs['wall'];
+        $sideSpec = $specs['side'];
+
         switch ($guideType) {
             case '벽면형':
-                // 120*70 × 2개
-                $price = $this->priceService->getGuideRailPrice($modelName, $finishingType, '120*70');
+                $price = $this->priceService->getGuideRailPrice($modelName, $finishingType, $wallSpec);
                 if ($price > 0) {
                     $guideQty = 2 * $quantity;
                     $items[] = [
                         'category' => 'steel',
                         'item_name' => '가이드레일',
-                        'specification' => "{$modelName} {$finishingType} 120*70 {$guideLength}m × 2",
+                        'specification' => "{$modelName} {$finishingType} {$wallSpec} {$guideLength}m × 2",
                         'unit' => 'm',
                         'quantity' => $guideLength * $guideQty,
                         'unit_price' => $price,
@@ -548,14 +570,13 @@ private function calculateGuideRails(
                 break;
 
             case '측면형':
-                // 120*100 × 2개
-                $price = $this->priceService->getGuideRailPrice($modelName, $finishingType, '120*100');
+                $price = $this->priceService->getGuideRailPrice($modelName, $finishingType, $sideSpec);
                 if ($price > 0) {
                     $guideQty = 2 * $quantity;
                     $items[] = [
                         'category' => 'steel',
                         'item_name' => '가이드레일',
-                        'specification' => "{$modelName} {$finishingType} 120*100 {$guideLength}m × 2",
+                        'specification' => "{$modelName} {$finishingType} {$sideSpec} {$guideLength}m × 2",
                         'unit' => 'm',
                         'quantity' => $guideLength * $guideQty,
                         'unit_price' => $price,
@@ -565,30 +586,29 @@ private function calculateGuideRails(
                 break;
 
             case '혼합형':
-                // 120*70 × 1개 + 120*100 × 1개
-                $price70 = $this->priceService->getGuideRailPrice($modelName, $finishingType, '120*70');
-                $price100 = $this->priceService->getGuideRailPrice($modelName, $finishingType, '120*100');
+                $priceWall = $this->priceService->getGuideRailPrice($modelName, $finishingType, $wallSpec);
+                $priceSide = $this->priceService->getGuideRailPrice($modelName, $finishingType, $sideSpec);
 
-                if ($price70 > 0) {
+                if ($priceWall > 0) {
                     $items[] = [
                         'category' => 'steel',
                         'item_name' => '가이드레일',
-                        'specification' => "{$modelName} {$finishingType} 120*70 {$guideLength}m",
+                        'specification' => "{$modelName} {$finishingType} {$wallSpec} {$guideLength}m",
                         'unit' => 'm',
                         'quantity' => $guideLength * $quantity,
-                        'unit_price' => $price70,
-                        'total_price' => round($price70 * $guideLength * $quantity),
+                        'unit_price' => $priceWall,
+                        'total_price' => round($priceWall * $guideLength * $quantity),
                     ];
                 }
-                if ($price100 > 0) {
+                if ($priceSide > 0) {
                     $items[] = [
                         'category' => 'steel',
                         'item_name' => '가이드레일',
-                        'specification' => "{$modelName} {$finishingType} 120*100 {$guideLength}m",
+                        'specification' => "{$modelName} {$finishingType} {$sideSpec} {$guideLength}m",
                         'unit' => 'm',
                         'quantity' => $guideLength * $quantity,
-                        'unit_price' => $price100,
-                        'total_price' => round($price100 * $guideLength * $quantity),
+                        'unit_price' => $priceSide,
+                        'total_price' => round($priceSide * $guideLength * $quantity),
                     ];
                 }
                 break;