diff --git a/src/assets/calculator.js b/src/assets/calculator.js
index de81fe3..e42b475 100644
--- a/src/assets/calculator.js
+++ b/src/assets/calculator.js
@@ -1,15 +1,17 @@
 const MINIMUM_BASE_AREA = 0.5;
-const MINIMUM_AREA_THREE_RATS = 1.8;
-const AREA_PER_ADDITIONAL_RAT = 0.2;
+const MINIMUM_AREA_THREE_RATS = 1.5;
+const AREA_PER_ADDITIONAL_RAT = 0.25;
 const MAXIMUM_FALL_HEIGHT = 0.5;
-const MINIMUM_LENGTH = 0.8;
+const MINIMUM_LENGTH_LONG_SIDE = 0.8;
+const MINIMUM_LENGTH_SHORT_SIDE = 0.5;
 const MINIMUM_FLOOR_HEIGHT = 0.3;
 
 const FAILED_BASE_AREA = "base_area";
 const FAILED_OVERALL_AREA = "overall_area";
 const FAILED_FALL_HEIGHT = "fall_height";
 const FAILED_NUM_RATS = "num_rats";
-const FAILED_LENGTH = "length";
+const FAILED_MINIMUM_LENGTH_LONG_SIDE = "length_long_side";
+const FAILED_MINIMUM_LENGTH_SHORT_SIDE= "length_short_side";
 const FAILED_FLOOR_HEIGHT = "floor_height"
 
 const FAIL_CRITERIA = {
@@ -18,7 +20,8 @@ const FAIL_CRITERIA = {
     [FAILED_FALL_HEIGHT]: `Die mögliche Fallhöhe darf nicht mehr als ${(MAXIMUM_FALL_HEIGHT * 100).toFixed(0)}cm betragen.`,
     [FAILED_FLOOR_HEIGHT]: `Der Mindestabstand zwischen Ebenen muss ${(MINIMUM_FLOOR_HEIGHT * 100).toFixed(0)}cm betragen.`,
     [FAILED_NUM_RATS]: "Es müssen mindestens 3 Ratten zusammenleben, Paarhaltung ist nicht artgerecht.",
-    [FAILED_LENGTH]: `Eine Seite des Käfig muss mindestens ${(MINIMUM_LENGTH * 100).toFixed(0)}cm lang sein um Rennen zu ermöglichen.`,
+    [FAILED_MINIMUM_LENGTH_LONG_SIDE]: `Die lange Seite des Käfig muss mindestens ${(MINIMUM_LENGTH_LONG_SIDE * 100).toFixed(0)}cm lang sein um Rennen zu ermöglichen.`,
+    [FAILED_MINIMUM_LENGTH_SHORT_SIDE]: `Die kurze Seite des Käfig muss mindestens ${(MINIMUM_LENGTH_SHORT_SIDE * 100).toFixed(0)}cm lang sein.`,
 };
 
 class Dimensions {
@@ -66,8 +69,12 @@ function cageCheck(dimensions, numRats, numFullFloors) {
         failedCriteria[FAILED_FALL_HEIGHT] = FAIL_CRITERIA[FAILED_FALL_HEIGHT];
     }
 
-    if (dimensions.width < MINIMUM_LENGTH && dimensions.depth < MINIMUM_LENGTH) {
-        failedCriteria[FAILED_LENGTH] = FAIL_CRITERIA[FAILED_LENGTH];
+    if (dimensions.width < MINIMUM_LENGTH_LONG_SIDE && dimensions.depth < MINIMUM_LENGTH_LONG_SIDE) {
+        failedCriteria[FAILED_MINIMUM_LENGTH_LONG_SIDE] = FAIL_CRITERIA[FAILED_MINIMUM_LENGTH_LONG_SIDE];
+    }
+
+    if (dimensions.width < MINIMUM_LENGTH_SHORT_SIDE || dimensions.depth < MINIMUM_LENGTH_SHORT_SIDE) {
+        failedCriteria[FAILED_MINIMUM_LENGTH_SHORT_SIDE] = FAIL_CRITERIA[FAILED_MINIMUM_LENGTH_SHORT_SIDE];
     }
 
     if (dimensions.height / numFullFloors < MINIMUM_FLOOR_HEIGHT) {