diff --git a/headers/os/interface/AbstractLayout.h b/headers/os/interface/AbstractLayout.h
index 3d419ac0c1..c24724427f 100644
--- a/headers/os/interface/AbstractLayout.h
+++ b/headers/os/interface/AbstractLayout.h
@@ -57,6 +57,10 @@ private:
 	virtual	void				_ReservedAbstractLayout9();
 	virtual	void				_ReservedAbstractLayout10();
 
+	// forbidden methods
+								BAbstractLayout(const BAbstractLayout&);
+			void				operator =(const BAbstractLayout&);
+
 			struct	Proxy;
 			struct	ViewProxy;
 			struct	DataProxy;
diff --git a/headers/os/interface/AbstractLayoutItem.h b/headers/os/interface/AbstractLayoutItem.h
index 3f0bdaea6c..4ddf0cfd4e 100644
--- a/headers/os/interface/AbstractLayoutItem.h
+++ b/headers/os/interface/AbstractLayoutItem.h
@@ -47,6 +47,10 @@ private:
 	virtual	void				_ReservedAbstractLayoutItem9();
 	virtual	void				_ReservedAbstractLayoutItem10();
 
+	// forbidden methods
+								BAbstractLayoutItem(const BAbstractLayoutItem&);
+			void				operator =(const BAbstractLayoutItem&);
+
 			BSize				fMinSize;
 			BSize				fMaxSize;
 			BSize				fPreferredSize;
diff --git a/headers/os/interface/GridLayout.h b/headers/os/interface/GridLayout.h
index ed873c61e2..4f8dac3900 100644
--- a/headers/os/interface/GridLayout.h
+++ b/headers/os/interface/GridLayout.h
@@ -111,6 +111,10 @@ private:
 	virtual	void				_ReservedGridLayout9();
 	virtual	void				_ReservedGridLayout10();
 
+	// forbidden methods
+								BGridLayout(const BGridLayout&);
+			void				operator =(const BGridLayout&);
+
 			BLayoutItem***		fGrid;
 			int32				fColumnCount;
 			int32				fRowCount;
diff --git a/headers/os/interface/GridView.h b/headers/os/interface/GridView.h
index 220ee326be..3e0279c0c6 100644
--- a/headers/os/interface/GridView.h
+++ b/headers/os/interface/GridView.h
@@ -24,6 +24,12 @@ public:
 			BGridLayout*		GridLayout() const;
 
 	static	BArchivable*		Instantiate(BMessage* from);
+
+private:
+
+	// forbidden methods
+								BGridView(const BGridView&);
+			void				operator =(const BGridView&);
 };
 
 
diff --git a/headers/os/interface/GroupLayout.h b/headers/os/interface/GroupLayout.h
index cb0b9f0c75..a64d05058a 100644
--- a/headers/os/interface/GroupLayout.h
+++ b/headers/os/interface/GroupLayout.h
@@ -75,6 +75,10 @@ private:
 	virtual	void				_ReservedGroupLayout9();
 	virtual	void				_ReservedGroupLayout10();
 
+	// forbidden methods
+								BGroupLayout(const BGroupLayout&);
+			void				operator =(const BGroupLayout&);
+
 			struct ItemLayoutData;
 
 			ItemLayoutData*		_LayoutDataForItem(BLayoutItem* item) const;
diff --git a/headers/os/interface/GroupView.h b/headers/os/interface/GroupView.h
index ad4644a72c..f272eb905e 100644
--- a/headers/os/interface/GroupView.h
+++ b/headers/os/interface/GroupView.h
@@ -25,6 +25,12 @@ public:
 			BGroupLayout*		GroupLayout() const;
 
 	static	BArchivable*		Instantiate(BMessage* from);
+
+private:
+
+	// forbidden methods
+								BGroupView(const BGroupView&);
+			void				operator =(const BGroupView&);
 };
 
 
diff --git a/headers/os/interface/Layout.h b/headers/os/interface/Layout.h
index 0253b4f6c4..552d8e9b32 100644
--- a/headers/os/interface/Layout.h
+++ b/headers/os/interface/Layout.h
@@ -104,6 +104,10 @@ private:
 	virtual	void				_ReservedLayout9();
 	virtual	void				_ReservedLayout10();
 
+	// forbidden methods
+								BLayout(const BLayout&);
+			void				operator =(const BLayout&);
+
 			friend class BView;
 
 			void				SetOwner(BView* owner);
diff --git a/headers/os/interface/SplitView.h b/headers/os/interface/SplitView.h
index 1f1aba69de..f8a74c536f 100644
--- a/headers/os/interface/SplitView.h
+++ b/headers/os/interface/SplitView.h
@@ -93,6 +93,10 @@ private:
 	virtual	void				_ReservedSplitView9();
 	virtual	void				_ReservedSplitView10();
 
+	// forbidden methods
+								BSplitView(const BSplitView&);
+			void				operator =(const BSplitView&);
+
 	static	void				_DrawDefaultSplitter(BView* view, BRect frame,
 									const BRect& updateRect,
 									enum orientation orientation,
diff --git a/headers/os/interface/TwoDimensionalLayout.h b/headers/os/interface/TwoDimensionalLayout.h
index 468b5588b0..3b340b69c1 100644
--- a/headers/os/interface/TwoDimensionalLayout.h
+++ b/headers/os/interface/TwoDimensionalLayout.h
@@ -110,6 +110,11 @@ private:
 	virtual	void				_ReservedTwoDimensionalLayout9();
 	virtual	void				_ReservedTwoDimensionalLayout10();
 
+	// forbidden methods
+								BTwoDimensionalLayout(
+									const BTwoDimensionalLayout&);
+			void				operator =(const BTwoDimensionalLayout&);
+
 			LocalLayouter*		fLocalLayouter;
 
 			uint32				_reserved[5];