diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/BlockPortableGrid.java b/src/main/java/com/raoulvdberge/refinedstorage/block/BlockPortableGrid.java
index 9b51e1d3d..d32386621 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/BlockPortableGrid.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/BlockPortableGrid.java
@@ -14,6 +14,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumHand;
+import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
@@ -23,6 +24,8 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class BlockPortableGrid extends BlockBase {
+    private static final AxisAlignedBB PORTABLE_GRID_AABB = new AxisAlignedBB(0, 0, 0, 1, 13.2F / 16F, 1);
+
     public static final PropertyEnum TYPE = PropertyEnum.create("type", PortableGridType.class);
 
     public BlockPortableGrid() {
@@ -50,6 +53,12 @@ public class BlockPortableGrid extends BlockBase {
         return Direction.HORIZONTAL;
     }
 
+    @Override
+    @SuppressWarnings("deprecation")
+    public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess world, BlockPos pos) {
+        return PORTABLE_GRID_AABB;
+    }
+
     @Override
     @SuppressWarnings("deprecation")
     public boolean isOpaqueCube(IBlockState state) {