diff --git a/src/SimNDT/core/boundary.py b/src/SimNDT/core/boundary.py
new file mode 100644
index 0000000..781448c
--- /dev/null
+++ b/src/SimNDT/core/boundary.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+# encoding: utf-8
+"""
+boundary.py
+
+Created by Miguel Molero on 2013-09-14.
+Copyright (c) 2013 MMolero. All rights reserved.
+"""
+
+from SimNDT.core.constants import *
+
+class Boundary:
+    def __init__(self,	name="Top", BC=BC.AirLayer, size=0):
+    	self.Name	= name
+    	self.BC		= BC
+    	self.Size	= size