diff --git a/ewmh.c b/ewmh.c
index dbe7580e..1172a400 100644
--- a/ewmh.c
+++ b/ewmh.c
@@ -453,24 +453,27 @@ ewmh_client_update_desktop(client_t *c)
 void
 ewmh_update_strut(xcb_window_t window, strut_t *strut)
 {
-    const uint32_t state[] =
+    if(window)
     {
-        strut->left,
-        strut->right,
-        strut->top,
-        strut->bottom,
-        strut->left_start_y,
-        strut->left_end_y,
-        strut->right_start_y,
-        strut->right_end_y,
-        strut->top_start_x,
-        strut->top_end_x,
-        strut->bottom_start_x,
-        strut->bottom_end_x
-    };
+        const uint32_t state[] =
+        {
+            strut->left,
+            strut->right,
+            strut->top,
+            strut->bottom,
+            strut->left_start_y,
+            strut->left_end_y,
+            strut->right_start_y,
+            strut->right_end_y,
+            strut->top_start_x,
+            strut->top_end_x,
+            strut->bottom_start_x,
+            strut->bottom_end_x
+        };
 
-    xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
-                        window, _NET_WM_STRUT_PARTIAL, CARDINAL, 32, countof(state), state);
+        xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
+                            window, _NET_WM_STRUT_PARTIAL, CARDINAL, 32, countof(state), state);
+    }
 }
 
 void
diff --git a/objects/client.c b/objects/client.c
index 87ce9262..a37b489f 100644
--- a/objects/client.c
+++ b/objects/client.c
@@ -1506,29 +1506,6 @@ luaA_client_geometry(lua_State *L)
     return luaA_pusharea(L, c->geometry);
 }
 
-/** Return client struts (reserved space at the edge of the screen).
- * \param L The Lua VM state.
- * \return The number of elements pushed on stack.
- * \luastack
- * \lparam A table with new strut values, or none.
- * \lreturn A table with strut values.
- */
-static int
-luaA_client_struts(lua_State *L)
-{
-    client_t *c = luaA_checkudata(L, 1, &client_class);
-
-    if(lua_gettop(L) == 2)
-    {
-        luaA_tostrut(L, 2, &c->strut);
-        ewmh_update_strut(c->window, &c->strut);
-        luaA_object_emit_signal(L, 1, "property::struts", 0);
-        screen_emit_signal(L, c->screen, "property::workarea", 0);
-    }
-
-    return luaA_pushstrut(L, c->strut);
-}
-
 static int
 luaA_client_set_screen(lua_State *L, client_t *c)
 {
@@ -2048,7 +2025,6 @@ client_class_setup(lua_State *L)
         { "keys", luaA_client_keys },
         { "isvisible", luaA_client_isvisible },
         { "geometry", luaA_client_geometry },
-        { "struts", luaA_client_struts },
         { "tags", luaA_client_tags },
         { "kill", luaA_client_kill },
         { "swap", luaA_client_swap },
diff --git a/objects/client.h b/objects/client.h
index b534d7f0..90f8f57a 100644
--- a/objects/client.h
+++ b/objects/client.h
@@ -24,7 +24,6 @@
 
 #include "mouse.h"
 #include "stack.h"
-#include "strut.h"
 #include "draw.h"
 #include "banning.h"
 #include "objects/window.h"
@@ -80,8 +79,6 @@ struct client_t
         /** Internal geometry (matching X11 protocol) */
         area_t internal;
     } geometries;
-    /** Strut */
-    strut_t strut;
     /** Border width and pre-fullscreen border width */
     int border_width, border_width_fs;
     xcolor_t border_color;
@@ -123,8 +120,6 @@ struct client_t
     xcb_window_t leader_window;
     /** Client's WM_PROTOCOLS property */
     xcb_get_wm_protocols_reply_t protocols;
-    /** Client logical screen */
-    screen_t *screen;
     /** Client physical screen */
     int phys_screen;
     /** Button bindings */
diff --git a/objects/wibox.c b/objects/wibox.c
index 2f4c653f..05c90960 100644
--- a/objects/wibox.c
+++ b/objects/wibox.c
@@ -884,24 +884,6 @@ luaA_wibox_geometry(lua_State *L)
     return luaA_pusharea(L, wibox->geometry);
 }
 
-static int
-luaA_wibox_struts(lua_State *L)
-{
-    wibox_t *w = luaA_checkudata(L, 1, &wibox_class);
-
-    if(lua_gettop(L) == 2)
-    {
-        luaA_tostrut(L, 2, &w->strut);
-        if(w->window)
-            ewmh_update_strut(w->window, &w->strut);
-        luaA_object_emit_signal(L, 1, "property::struts", 0);
-        if(w->screen)
-            screen_emit_signal(L, w->screen, "property::workarea", 0);
-    }
-
-    return luaA_pushstrut(L, w->strut);
-}
-
 LUA_OBJECT_EXPORT_PROPERTY(wibox, wibox_t, ontop, lua_pushboolean)
 LUA_OBJECT_EXPORT_PROPERTY(wibox, wibox_t, cursor, lua_pushstring)
 LUA_OBJECT_EXPORT_PROPERTY(wibox, wibox_t, visible, lua_pushboolean)
@@ -1334,7 +1316,6 @@ wibox_class_setup(lua_State *L)
     {
         LUA_OBJECT_META(wibox)
         LUA_CLASS_META
-        { "struts", luaA_wibox_struts },
         { "buttons", luaA_wibox_buttons },
         { "geometry", luaA_wibox_geometry },
         { "__gc", luaA_wibox_gc },
diff --git a/objects/wibox.h b/objects/wibox.h
index db8689a9..c176566f 100644
--- a/objects/wibox.h
+++ b/objects/wibox.h
@@ -23,7 +23,6 @@
 #define AWESOME_WIBOX_H
 
 #include "objects/widget.h"
-#include "strut.h"
 #include "objects/window.h"
 #include "common/luaobject.h"
 
@@ -35,8 +34,6 @@ struct wibox_t
     bool ontop;
     /** Visible */
     bool visible;
-    /** Screen */
-    screen_t *screen;
     /** Widget list */
     widget_node_array_t widgets;
     void *widgets_table;
@@ -66,8 +63,6 @@ struct wibox_t
     draw_context_t ctx;
     /** Orientation */
     orientation_t orientation;
-    /** Strut */
-    strut_t strut;
     /** The window's shape */
     struct
     {
diff --git a/objects/window.c b/objects/window.c
index 2079449d..cb33e791 100644
--- a/objects/window.c
+++ b/objects/window.c
@@ -21,11 +21,34 @@
 
 #include "luaa.h"
 #include "xwindow.h"
+#include "ewmh.h"
+#include "screen.h"
 #include "objects/window.h"
 #include "common/luaobject.h"
 
 LUA_CLASS_FUNCS(window, window_class)
 
+/** Return window struts (reserved space at the edge of the screen).
+ * \param L The Lua VM state.
+ * \return The number of elements pushed on stack.
+ */
+static int
+luaA_window_struts(lua_State *L)
+{
+    window_t *window = luaA_checkudata(L, 1, &window_class);
+
+    if(lua_gettop(L) == 2)
+    {
+        luaA_tostrut(L, 2, &window->strut);
+        ewmh_update_strut(window->window, &window->strut);
+        luaA_object_emit_signal(L, 1, "property::struts", 0);
+        if(window->screen)
+            screen_emit_signal(L, window->screen, "property::workarea", 0);
+    }
+
+    return luaA_pushstrut(L, window->strut);
+}
+
 /** Set a window opacity.
  * \param L The Lua VM state.
  * \param idx The index of the window on the stack.
@@ -91,6 +114,7 @@ window_class_setup(lua_State *L)
 
     static const struct luaL_reg window_meta[] =
     {
+        { "struts", luaA_window_struts },
         { NULL, NULL }
     };
 
diff --git a/objects/window.h b/objects/window.h
index 2722615e..2dc17ae4 100644
--- a/objects/window.h
+++ b/objects/window.h
@@ -22,6 +22,7 @@
 #ifndef AWESOME_OBJECTS_WINDOW_H
 #define AWESOME_OBJECTS_WINDOW_H
 
+#include "strut.h"
 #include "common/luaclass.h"
 
 #define WINDOW_OBJECT_HEADER \
@@ -29,7 +30,11 @@
     /** The X window number */ \
     xcb_window_t window; \
     /** Opacity */ \
-    double opacity;
+    double opacity; \
+    /** Strut */ \
+    strut_t strut; \
+    /** Client logical screen */ \
+    screen_t *screen;
 
 /** Window structure */
 typedef struct