diff --git a/libs/util/include/psemek/util/spatial_array.hpp b/libs/util/include/psemek/util/spatial_array.hpp
index 5cd897fe..5bd94a2e 100644
--- a/libs/util/include/psemek/util/spatial_array.hpp
+++ b/libs/util/include/psemek/util/spatial_array.hpp
@@ -40,6 +40,10 @@ namespace psemek::util
 		T const * begin() const;
 		T const * end() const;
 
+		Index size(std::size_t dimension) const;
+		Index min(std::size_t dimension) const;
+		Index max(std::size_t dimension) const;
+
 	private:
 		Index origin_[N];
 		array<T, N> array_;
@@ -217,4 +221,22 @@ namespace psemek::util
 		return array_.end();
 	}
 
+	template <typename T, std::size_t N, typename Index>
+	Index spatial_array<T, N, Index>::size(std::size_t dimension) const
+	{
+		return static_cast<Index>(array_.dim(dimension));
+	}
+
+	template <typename T, std::size_t N, typename Index>
+	Index spatial_array<T, N, Index>::min(std::size_t dimension) const
+	{
+		return origin_[dimension];
+	}
+
+	template <typename T, std::size_t N, typename Index>
+	Index spatial_array<T, N, Index>::max(std::size_t dimension) const
+	{
+		return origin_[dimension] + static_cast<Index>(array_.dim(dimension));
+	}
+
 }