diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
index 485ffc52b..7ab22451a 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
@@ -267,7 +267,7 @@ public class CartonMeasurementService {
 
     private void applyCalculatedValues(InboundMeasurementItemEntity item,
                                        CustomerDimensionWeightingService.RuleSet dimensionRules) {
-        CustomerDimensionWeightingService.WeightedDimensions weighted = dimensionRules.resolve(
+        CustomerDimensionWeightingService.WeightedDimensions weighted = dimensionRules.resolveDeviceMeasurement(
             item.getLengthCm(), item.getWidthCm(), item.getHeightCm());
         BigDecimal unitRaw = weighted.rawVolumeCbm();
         BigDecimal unitVolume = weighted.unitVolumeCbm();
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/CustomerDimensionWeightingService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/CustomerDimensionWeightingService.java
index 2fbc2782b..a976ac6f2 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/CustomerDimensionWeightingService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/CustomerDimensionWeightingService.java
@@ -64,6 +64,25 @@ public class CustomerDimensionWeightingService {
                 .orElseGet(() -> rules.get(rules.size() - 1)
                     .weightedActualDimensions(lengthCm, widthCm, heightCm));
         }
+
+        public WeightedDimensions resolveDeviceMeasurement(BigDecimal lengthCm, BigDecimal widthCm,
+                                                            BigDecimal heightCm) {
+            List<BigDecimal> measured = sortedDimensions(lengthCm, widthCm, heightCm);
+            return rules.stream()
+                .filter(rule -> rule.contains(measured))
+                .findFirst()
+                .map(Rule::weighted)
+                .orElseGet(() -> actualDimensions(lengthCm, widthCm, heightCm));
+        }
+
+        private WeightedDimensions actualDimensions(BigDecimal lengthCm, BigDecimal widthCm,
+                                                    BigDecimal heightCm) {
+            BigDecimal rawVolume = lengthCm.multiply(widthCm).multiply(heightCm)
+                .divide(CUBIC_CENTIMETERS_PER_CBM, 6, RoundingMode.HALF_UP);
+            return new WeightedDimensions(null, null, null, lengthCm, widthCm, heightCm,
+                rawVolume, rawVolume.setScale(3, RoundingMode.HALF_UP),
+                "ACTUAL_DIMENSION_V1");
+        }
     }
 
     public record WeightedDimensions(