diff --git a/Makefile.am b/Makefile.am
index dab645ef..ce581deb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -113,6 +113,8 @@ UTIL_FILES = \
options.hpp \
pascal.cpp \
pascal.hpp \
+ plane.cpp \
+ plane.hpp \
platform.hpp \
point.cpp \
point.hpp \
diff --git a/plane.cpp b/plane.cpp
new file mode 100644
index 00000000..3c94c32a
--- /dev/null
+++ b/plane.cpp
@@ -0,0 +1,38 @@
+/*
+ * This file is part of libgim.
+ *
+ * libgim is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * libgim is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libgim. If not, see .
+ *
+ * Copyright 2015 Danny Robson
+ */
+
+
+#include "plane.hpp"
+
+#include "debug.hpp"
+
+//-----------------------------------------------------------------------------
+template
+util::plane::plane (util::point _p,
+ util::vector _n):
+ p (_p),
+ n (_n)
+{
+ CHECK_EQ (n.magnitude2 (), 1);
+}
+
+
+//-----------------------------------------------------------------------------
+template struct util::plane<2,float>;
+template struct util::plane<3,float>;
diff --git a/plane.hpp b/plane.hpp
new file mode 100644
index 00000000..b5097663
--- /dev/null
+++ b/plane.hpp
@@ -0,0 +1,41 @@
+/*
+ * This file is part of libgim.
+ *
+ * libgim is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * libgim is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libgim. If not, see .
+ *
+ * Copyright 2015 Danny Robson
+ */
+
+#ifndef __UTIL_PLANE_HPP
+#define __UTIL_PLANE_HPP
+
+#include "point.hpp"
+#include "vector.hpp"
+
+namespace util {
+ template
+ struct plane {
+ plane (util::point p,
+ util::vector n);
+
+ util::point p;
+ util::vector n;
+ };
+
+
+ typedef plane<2,float> plane2f;
+ typedef plane<3,float> plane3f;
+}
+
+#endif