diff --git a/benchmarks/mceditlib/time_fill_ceiling.py b/benchmarks/mceditlib/time_fill_ceiling.py
new file mode 100644
index 0000000..88cedbc
--- /dev/null
+++ b/benchmarks/mceditlib/time_fill_ceiling.py
@@ -0,0 +1,25 @@
+from benchmarks import bench_temp_level
+from mceditlib.selection import BoundingBox
+from mceditlib.util import exhaust
+import logging
+logging.basicConfig(level=logging.INFO)
+
+size = 50
+
+def timeFillCeiling():
+    temp = bench_temp_level("AnvilWorld")
+    editor = temp
+    dim = editor.getDimension()
+    bounds = dim.bounds
+    x, y, z = bounds.center
+    y = 254
+    x -= size//2
+    z -= size//2
+    bounds = BoundingBox((x, y, z), (size, 1, size))
+    exhaust(dim.fillBlocksIter(bounds, editor.blocktypes["planks"]))
+
+
+if __name__ == "__main__":
+    import timeit
+    time = timeit.timeit(timeFillCeiling, number=1)
+    print "Filled in %.02f (%0.3f per block" % (time, (time / (size * size)))