diff --git a/blockiverse/chunk.cpp b/blockiverse/chunk.cpp
new file mode 100644
index 0000000..9895eac
--- /dev/null
+++ b/blockiverse/chunk.cpp
@@ -0,0 +1,26 @@
+/*
+**
+**  Minetest-Blockiverse
+**
+**  Incorporates portions of code from minetest 0.4.10-dev
+**
+**  Blockiverse
+**  Copyright (C) 2014 Brian Jack <gau_veldt@hotmail.com>
+**  Distributed as free software using the copyleft
+**  LGPL Version 3 license:
+**  https://www.gnu.org/licenses/lgpl-3.0.en.html
+**  See file LICENSE in ../
+**
+**  Implementation file chunk.cpp
+**
+**  Blocks and chunks
+**
+*/
+
+#include "chunk.hpp"
+
+namespace bvmap {
+
+// code here
+
+}
diff --git a/blockiverse/chunk.hpp b/blockiverse/chunk.hpp
new file mode 100644
index 0000000..e0ce574
--- /dev/null
+++ b/blockiverse/chunk.hpp
@@ -0,0 +1,40 @@
+/*
+**
+**  Minetest-Blockiverse
+**
+**  Incorporates portions of code from minetest 0.4.10-dev
+**
+**  Blockiverse
+**  Copyright (C) 2014 Brian Jack <gau_veldt@hotmail.com>
+**  Distributed as free software using the copyleft
+**  LGPL Version 3 license:
+**  https://www.gnu.org/licenses/lgpl-3.0.en.html
+**  See file LICENSE in ../
+**
+**  Declaration (header) file chunk.hpp
+**
+**  Declarations for chunks and blocks
+**
+*/
+#ifndef BV_CHUNK_HPP_INCLUDED
+#define BV_CHUNK_HPP_INCLUDED
+
+#include <inttypes.h>
+
+namespace bvmap {
+
+
+    class Node {
+    public:
+        uint16_t blockId;       // 0=air/space
+        uint8_t  blkLight;
+        uint8_t  flags;
+    };
+
+    class Chunk {
+        Node cells[16*16*16];
+    };
+
+}
+
+#endif // BV_CHUNK_HPP_INCLUDED
diff --git a/blockiverse/client.hpp b/blockiverse/client.hpp
index 31f0b1f..a696b4a 100644
--- a/blockiverse/client.hpp
+++ b/blockiverse/client.hpp
@@ -21,6 +21,7 @@
 
 #include "common.hpp"
 #include "protocol.hpp"
+#include "chunk.hpp"
 #include <string>
 #include <irrlicht.h>
 #include <map>
@@ -34,7 +35,8 @@ namespace bvclient {
     using namespace io;
     using namespace gui;
 
-    class Chunk;
+    typedef bvmap::Chunk Chunk;
+    typedef bvmap::Node Node;
     typedef std::shared_ptr<Chunk> chunkPtr;
     typedef std::map<std::string,chunkPtr> chunkMap;
     typedef std::map<std::string,int> userMap;