diff --git a/deleted.h b/deleted.h
--- a/deleted.h
+++ b/deleted.h
@@ -62,7 +62,6 @@
         return no_border;
     }
     void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const;
-    QRect decorationRect() const override;
     Layer layer() const override {
         return m_layer;
     }
diff --git a/deleted.cpp b/deleted.cpp
--- a/deleted.cpp
+++ b/deleted.cpp
@@ -224,11 +224,6 @@
     bottom = decoration_bottom;
 }
 
-QRect Deleted::decorationRect() const
-{
-    return rect();
-}
-
 QRect Deleted::transparentRect() const
 {
     return transparent_rect;
diff --git a/plugins/scenes/xrender/scene_xrender.cpp b/plugins/scenes/xrender/scene_xrender.cpp
--- a/plugins/scenes/xrender/scene_xrender.cpp
+++ b/plugins/scenes/xrender/scene_xrender.cpp
@@ -464,7 +464,7 @@
 
     X11Client *client = dynamic_cast<X11Client *>(toplevel);
     Deleted *deleted = dynamic_cast<Deleted*>(toplevel);
-    const QRect decorationRect = toplevel->decorationRect();
+    const QRect decorationRect = toplevel->rect();
     if (((client && !client->noBorder()) || (deleted && !deleted->noBorder())) &&
                                                         true) {
         // decorated client
diff --git a/scene.cpp b/scene.cpp
--- a/scene.cpp
+++ b/scene.cpp
@@ -788,7 +788,7 @@
 
 QRegion Scene::Window::decorationShape() const
 {
-    return QRegion(toplevel->decorationRect()) - toplevel->transparentRect();
+    return QRegion(toplevel->rect()) - toplevel->transparentRect();
 }
 
 QPoint Scene::Window::bufferOffset() const
diff --git a/toplevel.h b/toplevel.h
--- a/toplevel.h
+++ b/toplevel.h
@@ -376,8 +376,10 @@
      */
     virtual QPoint clientContentPos() const;
     virtual QSize clientSize() const = 0;
-    virtual QRect visibleRect() const; // the area the window occupies on the screen
-    virtual QRect decorationRect() const; // rect including the decoration shadows
+    /**
+     * Returns a rectangle that the window occupies on the screen, including drop-shadows.
+     */
+    virtual QRect visibleRect() const;
     virtual QRect transparentRect() const = 0;
     virtual bool isClient() const;
     virtual bool isDeleted() const;
diff --git a/toplevel.cpp b/toplevel.cpp
--- a/toplevel.cpp
+++ b/toplevel.cpp
@@ -75,11 +75,6 @@
     return stream;
 }
 
-QRect Toplevel::decorationRect() const
-{
-    return rect();
-}
-
 void Toplevel::detectShape(xcb_window_t id)
 {
     const bool wasShape = is_shape;
diff --git a/x11client.h b/x11client.h
--- a/x11client.h
+++ b/x11client.h
@@ -271,9 +271,6 @@
      */
     bool hasOffscreenXineramaStrut() const;
 
-    // Decorations <-> Effects
-    QRect decorationRect() const override;
-
     QRect transparentRect() const override;
 
     bool isClientSideDecorated() const;
diff --git a/x11client.cpp b/x11client.cpp
--- a/x11client.cpp
+++ b/x11client.cpp
@@ -2562,11 +2562,6 @@
     updateActivities(false);
 }
 
-QRect X11Client::decorationRect() const
-{
-    return QRect(0, 0, width(), height());
-}
-
 Xcb::Property X11Client::fetchFirstInTabBox() const
 {
     return Xcb::Property(false, m_client, atoms->kde_first_in_window_list,