diff --git a/common/buildcraft/builders/BuildingItem.java b/common/buildcraft/builders/BuildingItem.java
index 338cbef8..3a39447a 100755
--- a/common/buildcraft/builders/BuildingItem.java
+++ b/common/buildcraft/builders/BuildingItem.java
@@ -25,6 +25,7 @@ import buildcraft.core.blueprints.BuildingSlotEntity;
 import buildcraft.core.blueprints.IBuilder;
 import buildcraft.core.network.NetworkData;
 import buildcraft.core.utils.Utils;
+import buildcraft.core.utils.BlockUtil;
 
 public class BuildingItem implements IBuilder {
 
@@ -183,14 +184,23 @@ public class BuildingItem implements IBuilder {
 
 	private void build() {
 		if (slotToBuild != null) {
-			Block block = context.world().getBlock((int) destination.x, (int)destination.y, (int)destination.z);
-			int meta = context.world().getBlockMetadata((int) destination.x, (int)destination.y, (int)destination.z);
+			Position dest = slotToBuild.getDestination();
+			int destX = (int)Math.floor(dest.x);
+			int destY = (int)Math.floor(dest.y);
+			int destZ = (int)Math.floor(dest.z);
+			Block block = context.world().getBlock(destX, destY, destZ);
+			int meta = context.world().getBlockMetadata(destX, destY, destZ);
 
 			context.world().playAuxSFXAtEntity(null, 2001,
-					(int) destination.x, (int) destination.y,
-					(int) destination.z,
+					destX, destY, destZ,
 					Block.getIdFromBlock(block) + (meta << 12));
 
+			if (BlockUtil.isToughBlock(context.world(), destX, destY, destZ)) {
+				BlockUtil.breakBlock(context.world(), destX, destY, destZ, BuildCraftBuilders.fillerLifespanTough);
+			} else {
+				BlockUtil.breakBlock(context.world(), destX, destY, destZ, BuildCraftBuilders.fillerLifespanNormal);
+			}
+
 			slotToBuild.writeToWorld(context);
 		}
 	}