diff --git a/mysql_preview_server.py b/mysql_preview_server.py
index d62dbbb..746435c 100644
--- a/mysql_preview_server.py
+++ b/mysql_preview_server.py
@@ -1080,13 +1080,18 @@ def _parse_budget_girder_specs(rows):
     specs = []
     if len(rows) < 2:
         return specs
+    expected_cells = max(len(rows[0]) - 1, 0)
     for row in rows[1:]:
         if not row:
             continue
         first = _as_text(row[0]).strip()
         if not first or '조회된 내용이 없습니다' in first:
             continue
-        padded = row + [''] * max(0, 7 - len(row))
+        if expected_cells and len(row) < expected_cells:
+            padded = ([''] * (expected_cells - len(row))) + row
+        else:
+            padded = row[:]
+        padded += [''] * max(0, 7 - len(padded))
         specs.append({
             'extension': _as_text(padded[0]).strip(),
             'width': _as_text(padded[1]).strip(),
@@ -1099,6 +1104,39 @@ def _parse_budget_girder_specs(rows):
     return specs
 
 
+def _normalize_budget_girder_specs(specs):
+    normalized = []
+    previous_extension = ''
+    previous_width = ''
+    for row in specs or []:
+        current = dict(row or {})
+        if (
+            current.get('extension')
+            and current.get('width')
+            and current.get('length')
+            and current.get('height')
+            and not current.get('quantity')
+            and not current.get('formCount')
+        ):
+            current = {
+                **current,
+                'extension': '',
+                'width': '',
+                'length': current.get('extension', ''),
+                'height': current.get('width', ''),
+                'quantity': current.get('length', ''),
+                'formCount': current.get('height', ''),
+            }
+        if not _as_text(current.get('extension')).strip() and previous_extension:
+            current['extension'] = previous_extension
+        if not _as_text(current.get('width')).strip() and previous_width:
+            current['width'] = previous_width
+        previous_extension = _as_text(current.get('extension')).strip() or previous_extension
+        previous_width = _as_text(current.get('width')).strip() or previous_width
+        normalized.append(current)
+    return normalized
+
+
 def _parse_budget_predeck(rows):
     result = {'generalArea': '', 'medianArea': '', 'barrierArea': '', 'remarks': ''}
     if len(rows) < 2:
@@ -1251,6 +1289,7 @@ def get_erp_budget_plan_cache(conn, source_page='const', project_code=''):
     if not row:
         return None
     payload = json.loads(row[5] or '{}')
+    girder_specs = _normalize_budget_girder_specs(payload.get('girderSpecs') or [])
     return {
         'sourcePage': source_page,
         'projectCode': project_code,
@@ -1262,7 +1301,7 @@ def get_erp_budget_plan_cache(conn, source_page='const', project_code=''):
         'summary': payload.get('summary') or {},
         'inputDays': payload.get('inputDays') or {},
         'inputRebar': payload.get('inputRebar') or {},
-        'girderSpecs': payload.get('girderSpecs') or [],
+        'girderSpecs': girder_specs,
         'predeck': payload.get('predeck') or {},
         'crossbeam': payload.get('crossbeam') or {},
         'syncedAt': row[6] or '',