diff --git a/src/main/java/com/seibel/lod/builders/lodBuilding/LodBuilder.java b/src/main/java/com/seibel/lod/builders/lodBuilding/LodBuilder.java
index a0ffb7d0b..dcd301c81 100644
--- a/src/main/java/com/seibel/lod/builders/lodBuilding/LodBuilder.java
+++ b/src/main/java/com/seibel/lod/builders/lodBuilding/LodBuilder.java
@@ -238,7 +238,7 @@ public class LodBuilder
 			
 			long[] data;
 			long[] dataToMergeVertical = createVerticalDataToMerge(detail, chunk, config, startX, startZ, endX, endZ);
-			data = DataPointUtil.mergeMultiData(dataToMergeVertical, DataPointUtil.worldHeight, DetailDistanceUtil.getMaxVerticalData(detailLevel));
+			data = DataPointUtil.mergeMultiData(dataToMergeVertical, DataPointUtil.worldHeight / 2 + 1, DetailDistanceUtil.getMaxVerticalData(detailLevel));
 			
 			
 			//lodDim.clear(detailLevel, posX, posZ);
@@ -260,7 +260,7 @@ public class LodBuilder
 		
 		long[] dataToMerge = ThreadMapUtil.getBuilderVerticalArray(detail.detailLevel);
 		
-		int verticalData = DataPointUtil.worldHeight;
+		int verticalData = DataPointUtil.worldHeight / 2 + 1;
 		
 		ChunkPos chunkPos = chunk.getPos();
 		int height;
diff --git a/src/main/java/com/seibel/lod/util/DataPointUtil.java b/src/main/java/com/seibel/lod/util/DataPointUtil.java
index 25d707e5d..f94a9e7e7 100644
--- a/src/main/java/com/seibel/lod/util/DataPointUtil.java
+++ b/src/main/java/com/seibel/lod/util/DataPointUtil.java
@@ -282,7 +282,7 @@ public class DataPointUtil
 		int size = dataToMerge.length / inputVerticalData;
 		
 		// We initialize the arrays that are going to be used
-		short[] heightAndDepth = ThreadMapUtil.getHeightAndDepth((worldHeight + 1) * 2);
+		short[] heightAndDepth = ThreadMapUtil.getHeightAndDepth((worldHeight / 2 + 1) * 2);
 		long[] dataPoint = ThreadMapUtil.getVerticalDataArray(DetailDistanceUtil.getMaxVerticalData(0));
 		
 		
diff --git a/src/main/java/com/seibel/lod/util/ThreadMapUtil.java b/src/main/java/com/seibel/lod/util/ThreadMapUtil.java
index 42564aba7..d70dbc0e8 100644
--- a/src/main/java/com/seibel/lod/util/ThreadMapUtil.java
+++ b/src/main/java/com/seibel/lod/util/ThreadMapUtil.java
@@ -128,7 +128,7 @@ public class ThreadMapUtil
 			int size = 1;
 			for (int i = 0; i < 5; i++)
 			{
-				array[i] = new long[size * size * DataPointUtil.worldHeight + 1];//TODO do we need +1?
+				array[i] = new long[size * size * DataPointUtil.worldHeight / 2 + 1];
 				size = size << 1;
 			}
 			threadBuilderVerticalArrayMap.put(Thread.currentThread().getName(), array);