diff --git a/src/components/DimensionsView.tsx b/src/components/DimensionsView.tsx
index 4e30724..6b26b3c 100644
--- a/src/components/DimensionsView.tsx
+++ b/src/components/DimensionsView.tsx
@@ -41,8 +41,12 @@ export function DimensionsView({ data, headers, onEdit, onSaveRow, onCaptureStat
       const iw = String(row[COLUMNS.INNER_W] || '0').trim();
       const il = String(row[COLUMNS.INNER_L] || '0').trim();
       const ih = String(row[COLUMNS.INNER_H] || '0').trim();
-      
-      const key = `${il}x${iw}x${ih}`;
+
+      // Normalize key by sorting dimension values so different orderings
+      // (e.g. "29x10x15" vs "10x29x15") are treated as the same group
+      const sortedDims = [parseFloat(il) || 0, parseFloat(iw) || 0, parseFloat(ih) || 0]
+        .sort((a, b) => a - b);
+      const key = sortedDims.join('x');
       if (!groupMap.has(key)) {
         groupMap.set(key, []);
       }