diff --git a/headers/os/interface/Size.h b/headers/os/interface/Size.h
index 89c615fe50..2c687859b0 100644
--- a/headers/os/interface/Size.h
+++ b/headers/os/interface/Size.h
@@ -28,6 +28,7 @@ public:
 	inline	float				Width() const;
 	inline	float				Height() const;
 
+	inline	void				Set(float width, float height);
 	inline	void				SetWidth(float width);
 	inline	void				SetHeight(float height);
 
@@ -87,6 +88,15 @@ BSize::Height() const
 }
 
 
+// Set
+inline void
+BSize::Set(float width, float height)
+{
+	this->width = width;
+	this->height = height;
+}
+
+
 // SetWidth
 inline void
 BSize::SetWidth(float width)