diff --git a/src/index.js b/src/index.js
index afca4f9..da2fd1a 100644
--- a/src/index.js
+++ b/src/index.js
@@ -151,23 +151,17 @@ class Validator {
         return MINIMUM_AREA_THREE_RATS + (numOfRats - 3) * AREA_PER_ADDITIONAL_RAT;
     }
 
-    cageCheck(dimensions, numRats, numFullFloors) {
+    failCageNumberIndependent(dimensions, numFullFloors) {
+        /*
+        Function that checks a cage independent of the number of rats.
+         */
         let failedCriteria = {};
 
-        if (numRats < 2 || numRats > 15) {
-            failedCriteria[FAILED_NUM_RATS] = this.FAIL_CRITERIA[FAILED_NUM_RATS];
-        }
-
         const baseArea = dimensions.depth * dimensions.width;
         if (baseArea < MINIMUM_BASE_AREA) {
             failedCriteria[FAILED_BASE_AREA] = this.FAIL_CRITERIA[FAILED_BASE_AREA];
         }
 
-        const areaNeeded = this.overallAreaNeeded(numRats);
-        if (baseArea * numFullFloors < areaNeeded) {
-            failedCriteria[FAILED_OVERALL_AREA] = this.FAIL_CRITERIA[FAILED_OVERALL_AREA];
-        }
-
         if (dimensions.height / numFullFloors > MAXIMUM_FALL_HEIGHT) {
             failedCriteria[FAILED_FALL_HEIGHT] = this.FAIL_CRITERIA[FAILED_FALL_HEIGHT];
         }
@@ -187,6 +181,25 @@ class Validator {
         return failedCriteria;
     }
 
+    cageCheck(dimensions, numRats, numFullFloors) {
+        /*
+        Function that checks a cage based on overall criteria and the number of rats.
+         */
+        let failedCriteria = this.failCageNumberIndependent(dimensions, numFullFloors);
+
+        if (numRats < 2 || numRats > 15) {
+            failedCriteria[FAILED_NUM_RATS] = this.FAIL_CRITERIA[FAILED_NUM_RATS];
+        }
+
+        const areaNeeded = this.overallAreaNeeded(numRats);
+        const baseArea = dimensions.depth * dimensions.width;
+        if (baseArea * numFullFloors < areaNeeded) {
+            failedCriteria[FAILED_OVERALL_AREA] = this.FAIL_CRITERIA[FAILED_OVERALL_AREA];
+        }
+
+        return failedCriteria;
+    }
+
 
 }