diff --git a/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/autoadd_options.ui b/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/autoadd_options.ui
index 73b38316e..a4cd364e9 100644
--- a/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/autoadd_options.ui
+++ b/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/autoadd_options.ui
@@ -46,6 +46,7 @@
       <object class="GtkBox" id="dialog-vbox1">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child internal-child="action_area">
           <object class="GtkButtonBox" id="dialog-action_area1">
             <property name="visible">True</property>
@@ -108,18 +109,20 @@
           </packing>
         </child>
         <child>
-          <object class="GtkVBox" id="vbox1">
+          <object class="GtkBox" id="vbox1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
+            <property name="orientation">vertical</property>
             <child>
               <object class="GtkNotebook" id="notebook1">
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <child>
-                  <object class="GtkVBox" id="vbox2">
+                  <object class="GtkBox" id="vbox2">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="border_width">6</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkFrame" id="frame2">
                         <property name="visible">True</property>
@@ -132,11 +135,12 @@
                             <property name="can_focus">False</property>
                             <property name="left_padding">12</property>
                             <child>
-                              <object class="GtkVBox" id="vbox6">
+                              <object class="GtkBox" id="vbox6">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
+                                <property name="orientation">vertical</property>
                                 <child>
-                                  <object class="GtkHBox" id="hbox3">
+                                  <object class="GtkBox" id="hbox3">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <child>
@@ -230,9 +234,10 @@ it will be added to the session.</property>
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <child>
-                                  <object class="GtkVBox" id="vbox7">
+                                  <object class="GtkBox" id="vbox7">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
+                                    <property name="orientation">vertical</property>
                                     <child>
                                       <object class="GtkRadioButton" id="isnt_append_extension">
                                         <property name="label" translatable="yes">Delete .torrent after adding</property>
@@ -251,7 +256,7 @@ the .torrent will be deleted.</property>
                                       </packing>
                                     </child>
                                     <child>
-                                      <object class="GtkHBox" id="hbox1">
+                                      <object class="GtkBox" id="hbox1">
                                         <property name="visible">True</property>
                                         <property name="can_focus">False</property>
                                         <child>
@@ -316,7 +321,7 @@ and deleted from the watch folder.</property>
                                           </object>
                                         </child>
                                         <child>
-                                          <object class="GtkHBox" id="hbox7">
+                                          <object class="GtkBox" id="hbox7">
                                             <property name="visible">True</property>
                                             <property name="can_focus">False</property>
                                             <child>
@@ -410,9 +415,10 @@ also delete the .torrent file used to add it.</property>
                             <property name="can_focus">False</property>
                             <property name="left_padding">12</property>
                             <child>
-                              <object class="GtkVBox" id="vbox3">
+                              <object class="GtkBox" id="vbox3">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
+                                <property name="orientation">vertical</property>
                                 <child>
                                   <object class="GtkCheckButton" id="download_location_toggle">
                                     <property name="label" translatable="yes">Set download folder</property>
@@ -431,7 +437,7 @@ also delete the .torrent file used to add it.</property>
                                   </packing>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="hbox4">
+                                  <object class="GtkBox" id="hbox4">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <child>
@@ -499,9 +505,10 @@ also delete the .torrent file used to add it.</property>
                             <property name="can_focus">False</property>
                             <property name="left_padding">12</property>
                             <child>
-                              <object class="GtkVBox" id="vbox4">
+                              <object class="GtkBox" id="vbox4">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
+                                <property name="orientation">vertical</property>
                                 <child>
                                   <object class="GtkCheckButton" id="move_completed_toggle">
                                     <property name="label" translatable="yes">Set move completed folder</property>
@@ -519,7 +526,7 @@ also delete the .torrent file used to add it.</property>
                                   </packing>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="hbox5">
+                                  <object class="GtkBox" id="hbox5">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <child>
@@ -601,7 +608,7 @@ also delete the .torrent file used to add it.</property>
                             <property name="can_focus">False</property>
                             <property name="left_padding">12</property>
                             <child>
-                              <object class="GtkHBox" id="hbox11">
+                              <object class="GtkBox" id="hbox11">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <child>
@@ -626,7 +633,7 @@ also delete the .torrent file used to add it.</property>
                                     <property name="can_focus">False</property>
                                     <property name="has_entry">True</property>
                                     <child internal-child="entry">
-                                      <object class="GtkEntry">
+                                      <object class="GtkEntry" id="combobox-entry1">
                                         <property name="can_focus">False</property>
                                       </object>
                                     </child>
@@ -669,11 +676,12 @@ also delete the .torrent file used to add it.</property>
                   </packing>
                 </child>
                 <child>
-                  <object class="GtkVBox" id="vbox5">
+                  <object class="GtkBox" id="vbox5">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="border_width">6</property>
                     <property name="spacing">5</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkFrame" id="OwnerFrame">
                         <property name="visible">True</property>
@@ -1070,7 +1078,7 @@ also delete the .torrent file used to add it.</property>
                                   </packing>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="auto_managed_box">
+                                  <object class="GtkBox" id="auto_managed_box">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <property name="homogeneous">True</property>
@@ -1148,7 +1156,7 @@ also delete the .torrent file used to add it.</property>
                                   </object>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="add_paused_box">
+                                  <object class="GtkBox" id="add_paused_box">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <property name="homogeneous">True</property>
@@ -1205,7 +1213,7 @@ also delete the .torrent file used to add it.</property>
                                   </packing>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="hbox2">
+                                  <object class="GtkBox" id="hbox2">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <property name="homogeneous">True</property>
diff --git a/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/config.ui b/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/config.ui
index 52aa4709e..0e645d374 100644
--- a/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/config.ui
+++ b/deluge/plugins/AutoAdd/deluge/plugins/autoadd/data/config.ui
@@ -8,7 +8,7 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkHBox" id="hbox9">
+      <object class="GtkBox" id="hbox9">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <child>
@@ -19,12 +19,13 @@
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <child>
-              <object class="GtkVBox" id="prefs_box">
+              <object class="GtkBox" id="prefs_box">
                 <property name="width_request">340</property>
                 <property name="height_request">390</property>
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="border_width">3</property>
+                <property name="orientation">vertical</property>
                 <child>
                   <object class="GtkFrame" id="frame1">
                     <property name="visible">True</property>
@@ -32,10 +33,11 @@
                     <property name="label_xalign">0</property>
                     <property name="shadow_type">none</property>
                     <child>
-                      <object class="GtkVBox" id="watchdirs_vbox">
+                      <object class="GtkBox" id="watchdirs_vbox">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="homogeneous">True</property>
+                        <property name="orientation">vertical</property>
                         <child>
                           <placeholder/>
                         </child>
diff --git a/deluge/plugins/Blocklist/deluge/plugins/blocklist/data/blocklist_pref.ui b/deluge/plugins/Blocklist/deluge/plugins/blocklist/data/blocklist_pref.ui
index 582ed3431..013d8e70e 100644
--- a/deluge/plugins/Blocklist/deluge/plugins/blocklist/data/blocklist_pref.ui
+++ b/deluge/plugins/Blocklist/deluge/plugins/blocklist/data/blocklist_pref.ui
@@ -15,10 +15,11 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="blocklist_prefs_box">
+      <object class="GtkBox" id="blocklist_prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="spacing">5</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="frame1">
             <property name="visible">True</property>
@@ -31,7 +32,7 @@
                 <property name="can_focus">False</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkHBox" id="hbox2">
+                  <object class="GtkBox" id="hbox2">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="spacing">5</property>
@@ -93,10 +94,11 @@
                 <property name="can_focus">False</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkVBox" id="vbox1">
+                  <object class="GtkBox" id="vbox1">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="spacing">5</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkTable" id="table1">
                         <property name="visible">True</property>
@@ -200,13 +202,14 @@
                 <property name="xscale">0</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkHBox" id="hbox3">
+                  <object class="GtkBox" id="hbox3">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <child>
-                      <object class="GtkVBox" id="vbox3">
+                      <object class="GtkBox" id="vbox3">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkButton" id="button_check_download">
                             <property name="visible">True</property>
@@ -215,7 +218,7 @@
                             <property name="tooltip_text" translatable="yes">Download the blocklist file if necessary and import the file.</property>
                             <signal name="clicked" handler="on_button_check_download_clicked" swapped="no"/>
                             <child>
-                              <object class="GtkHBox" id="hbox4">
+                              <object class="GtkBox" id="hbox4">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <property name="spacing">5</property>
@@ -260,7 +263,7 @@
                             <property name="tooltip_text" translatable="yes">Download a new blocklist file and import it.</property>
                             <signal name="clicked" handler="on_button_force_download_clicked" swapped="no"/>
                             <child>
-                              <object class="GtkHBox" id="hbox5">
+                              <object class="GtkBox" id="hbox5">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <property name="spacing">5</property>
@@ -351,9 +354,10 @@
                 <property name="top_padding">5</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkVBox" id="vbox4">
+                  <object class="GtkBox" id="vbox4">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkProgressBar" id="progressbar">
                         <property name="visible">True</property>
@@ -510,7 +514,7 @@
                 <property name="can_focus">False</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkHBox" id="hbox1">
+                  <object class="GtkBox" id="hbox1">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <child>
diff --git a/deluge/plugins/Execute/deluge/plugins/execute/data/execute_prefs.ui b/deluge/plugins/Execute/deluge/plugins/execute/data/execute_prefs.ui
index ed1347aa6..fc02a54a8 100644
--- a/deluge/plugins/Execute/deluge/plugins/execute/data/execute_prefs.ui
+++ b/deluge/plugins/Execute/deluge/plugins/execute/data/execute_prefs.ui
@@ -14,9 +14,10 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="execute_box">
+      <object class="GtkBox" id="execute_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="add_frame">
             <property name="visible">True</property>
@@ -159,10 +160,11 @@
                 <property name="top_padding">5</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkVBox" id="commands_vbox">
+                  <object class="GtkBox" id="commands_vbox">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <placeholder/>
                     </child>
diff --git a/deluge/plugins/Execute/deluge/plugins/execute/gtkui.py b/deluge/plugins/Execute/deluge/plugins/execute/gtkui.py
index 772c1e13a..c0c720089 100644
--- a/deluge/plugins/Execute/deluge/plugins/execute/gtkui.py
+++ b/deluge/plugins/Execute/deluge/plugins/execute/gtkui.py
@@ -83,7 +83,7 @@ class ExecutePreferences(object):
     def add_command(self, command_id, event, command):
         log.debug('Adding command `%s`', command_id)
         vbox = self.builder.get_object('commands_vbox')
-        hbox = Gtk.HBox(False, 5)
+        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=5)
         hbox.set_name(command_id + '_' + event)
         label = Gtk.Label(EVENT_MAP[event])
         entry = Gtk.Entry()
diff --git a/deluge/plugins/Extractor/deluge/plugins/extractor/data/extractor_prefs.ui b/deluge/plugins/Extractor/deluge/plugins/extractor/data/extractor_prefs.ui
index 4509bd254..6f34b4411 100644
--- a/deluge/plugins/Extractor/deluge/plugins/extractor/data/extractor_prefs.ui
+++ b/deluge/plugins/Extractor/deluge/plugins/extractor/data/extractor_prefs.ui
@@ -8,10 +8,11 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="extractor_prefs_box">
+      <object class="GtkBox" id="extractor_prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="spacing">5</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="frame1">
             <property name="visible">True</property>
@@ -19,13 +20,14 @@
             <property name="label_xalign">0</property>
             <property name="shadow_type">none</property>
             <child>
-              <object class="GtkVBox" id="vbox1">
+              <object class="GtkBox" id="vbox1">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="border_width">5</property>
                 <property name="spacing">5</property>
+                <property name="orientation">vertical</property>
                 <child>
-                  <object class="GtkHBox" id="hbox1">
+                  <object class="GtkBox" id="hbox1">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="spacing">5</property>
@@ -42,7 +44,7 @@
                       </packing>
                     </child>
                     <child>
-                      <object class="GtkHBox" id="hbox2">
+                      <object class="GtkBox" id="hbox2">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <child>
diff --git a/deluge/plugins/Label/deluge/plugins/label/data/label_add.ui b/deluge/plugins/Label/deluge/plugins/label/data/label_add.ui
index df564c373..68f8a72b2 100644
--- a/deluge/plugins/Label/deluge/plugins/label/data/label_add.ui
+++ b/deluge/plugins/Label/deluge/plugins/label/data/label_add.ui
@@ -66,12 +66,13 @@
           </packing>
         </child>
         <child>
-          <object class="GtkVBox" id="vbox1">
+          <object class="GtkBox" id="vbox1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="spacing">5</property>
+            <property name="orientation">vertical</property>
             <child>
-              <object class="GtkHBox" id="hbox1">
+              <object class="GtkBox" id="hbox1">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="spacing">5</property>
@@ -119,7 +120,7 @@
               </packing>
             </child>
             <child>
-              <object class="GtkHBox" id="hbox2">
+              <object class="GtkBox" id="hbox2">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="spacing">5</property>
diff --git a/deluge/plugins/Label/deluge/plugins/label/data/label_options.ui b/deluge/plugins/Label/deluge/plugins/label/data/label_options.ui
index dd33c19c3..c0fca4ff5 100644
--- a/deluge/plugins/Label/deluge/plugins/label/data/label_options.ui
+++ b/deluge/plugins/Label/deluge/plugins/label/data/label_options.ui
@@ -101,7 +101,7 @@
           </packing>
         </child>
         <child>
-          <object class="GtkHBox" id="hbox3">
+          <object class="GtkBox" id="hbox3">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="spacing">5</property>
@@ -652,9 +652,10 @@
                     <property name="can_focus">False</property>
                     <property name="left_padding">12</property>
                     <child>
-                      <object class="GtkVBox" id="vbox2">
+                      <object class="GtkBox" id="vbox2">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkScrolledWindow" id="scrolledwindow1">
                             <property name="visible">True</property>
diff --git a/deluge/plugins/Label/deluge/plugins/label/data/label_pref.ui b/deluge/plugins/Label/deluge/plugins/label/data/label_pref.ui
index 26d9c4d67..81edc378a 100644
--- a/deluge/plugins/Label/deluge/plugins/label/data/label_pref.ui
+++ b/deluge/plugins/Label/deluge/plugins/label/data/label_pref.ui
@@ -8,10 +8,11 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="label_prefs_box">
+      <object class="GtkBox" id="label_prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="spacing">5</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="frame3">
             <property name="visible">True</property>
diff --git a/deluge/plugins/Notifications/deluge/plugins/notifications/data/config.ui b/deluge/plugins/Notifications/deluge/plugins/notifications/data/config.ui
index d75b4bbb6..c16b37acd 100644
--- a/deluge/plugins/Notifications/deluge/plugins/notifications/data/config.ui
+++ b/deluge/plugins/Notifications/deluge/plugins/notifications/data/config.ui
@@ -15,9 +15,10 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="prefs_box">
+      <object class="GtkBox" id="prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkViewport" id="viewport1">
             <property name="visible">True</property>
@@ -29,10 +30,11 @@
                 <property name="can_focus">True</property>
                 <property name="show_border">False</property>
                 <child>
-                  <object class="GtkVBox" id="vbox2">
+                  <object class="GtkBox" id="vbox2">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="valign">start</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkFrame" id="frame2">
                         <property name="visible">True</property>
@@ -48,9 +50,10 @@
                             <property name="left_padding">12</property>
                             <property name="right_padding">10</property>
                             <child>
-                              <object class="GtkVBox" id="vbox1">
+                              <object class="GtkBox" id="vbox1">
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
+                                <property name="orientation">vertical</property>
                                 <child>
                                   <object class="GtkCheckButton" id="blink_enabled">
                                     <property name="label" translatable="yes">Tray icon blinks enabled</property>
@@ -80,7 +83,7 @@
                                   </packing>
                                 </child>
                                 <child>
-                                  <object class="GtkHBox" id="hbox2">
+                                  <object class="GtkBox" id="hbox2">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <child>
@@ -293,7 +296,7 @@
                                         <property name="can_focus">False</property>
                                         <property name="bottom_padding">10</property>
                                         <child>
-                                          <object class="GtkHBox" id="hbox1">
+                                          <object class="GtkBox" id="hbox1">
                                             <property name="visible">True</property>
                                             <property name="can_focus">False</property>
                                             <property name="spacing">2</property>
@@ -481,12 +484,13 @@
                   </packing>
                 </child>
                 <child>
-                  <object class="GtkVBox" id="vbox5">
+                  <object class="GtkBox" id="vbox5">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="margin_left">15</property>
                     <property name="margin_right">10</property>
                     <property name="margin_bottom">10</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <placeholder/>
                     </child>
@@ -543,12 +547,13 @@
                   </packing>
                 </child>
                 <child>
-                  <object class="GtkVBox" id="sounds_page">
+                  <object class="GtkBox" id="sounds_page">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="margin_left">15</property>
                     <property name="margin_right">10</property>
                     <property name="margin_bottom">10</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkScrolledWindow" id="scrolledwindow3">
                         <property name="visible">True</property>
diff --git a/deluge/plugins/Scheduler/deluge/plugins/scheduler/gtkui.py b/deluge/plugins/Scheduler/deluge/plugins/scheduler/gtkui.py
index b802aa666..12f5fb63c 100644
--- a/deluge/plugins/Scheduler/deluge/plugins/scheduler/gtkui.py
+++ b/deluge/plugins/Scheduler/deluge/plugins/scheduler/gtkui.py
@@ -277,9 +277,9 @@ class GtkUI(Gtk3PluginBase):
         hover = Gtk.Label()
         self.scheduler_select = SchedulerSelectWidget(hover)
 
-        vbox = Gtk.VBox(False, 5)
-        hbox = Gtk.HBox(False, 5)
-        vbox_days = Gtk.VBox()
+        vbox = Gtk.Box.new(Gtk.Orientation.VERTICAL, spacing=5)
+        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=5)
+        vbox_days = Gtk.Box.new(Gtk.Orientation.VERTICAL, spacing=0)
         for day in DAYS:
             vbox_days.pack_start(Gtk.Label(day, xalign=0), True, False, 0)
         hbox.pack_start(vbox_days, False, False, 15)
diff --git a/deluge/plugins/Stats/deluge/plugins/stats/data/config.ui b/deluge/plugins/Stats/deluge/plugins/stats/data/config.ui
index 1ded24d86..326598b5b 100644
--- a/deluge/plugins/Stats/deluge/plugins/stats/data/config.ui
+++ b/deluge/plugins/Stats/deluge/plugins/stats/data/config.ui
@@ -8,9 +8,10 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="prefs_box">
+      <object class="GtkBox" id="prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="frame1">
             <property name="visible">True</property>
diff --git a/deluge/plugins/Stats/deluge/plugins/stats/data/tabs.ui b/deluge/plugins/Stats/deluge/plugins/stats/data/tabs.ui
index 0432b42ca..4b35765a9 100644
--- a/deluge/plugins/Stats/deluge/plugins/stats/data/tabs.ui
+++ b/deluge/plugins/Stats/deluge/plugins/stats/data/tabs.ui
@@ -8,11 +8,12 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="vbox1">
+      <object class="GtkBox" id="vbox1">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child>
-          <object class="GtkHBox" id="graph_label">
+          <object class="GtkBox" id="graph_label">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <child>
@@ -45,11 +46,12 @@
                 <property name="resize_mode">queue</property>
                 <property name="shadow_type">none</property>
                 <child>
-                  <object class="GtkVBox" id="vbox2">
+                  <object class="GtkBox" id="vbox2">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="orientation">vertical</property>
                     <child>
-                      <object class="GtkHBox" id="hbox1">
+                      <object class="GtkBox" id="hbox1">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <child>
diff --git a/deluge/plugins/WebUi/deluge/plugins/webui/data/config.ui b/deluge/plugins/WebUi/deluge/plugins/webui/data/config.ui
index a68602166..18647a415 100644
--- a/deluge/plugins/WebUi/deluge/plugins/webui/data/config.ui
+++ b/deluge/plugins/WebUi/deluge/plugins/webui/data/config.ui
@@ -14,9 +14,10 @@
       <placeholder/>
     </child>
     <child>
-      <object class="GtkVBox" id="prefs_box">
+      <object class="GtkBox" id="prefs_box">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkFrame" id="settings_frame">
             <property name="visible">True</property>
@@ -30,10 +31,11 @@
                 <property name="top_padding">10</property>
                 <property name="left_padding">12</property>
                 <child>
-                  <object class="GtkVBox" id="settings_vbox">
+                  <object class="GtkBox" id="settings_vbox">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="spacing">5</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkCheckButton" id="enabled_checkbutton">
                         <property name="label" translatable="yes">Enable web interface</property>
@@ -63,7 +65,7 @@
                       </packing>
                     </child>
                     <child>
-                      <object class="GtkHBox" id="port_hbox">
+                      <object class="GtkBox" id="port_hbox">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="spacing">5</property>
diff --git a/deluge/plugins/WebUi/deluge/plugins/webui/gtkui.py b/deluge/plugins/WebUi/deluge/plugins/webui/gtkui.py
index f67791761..ca3a16ea4 100644
--- a/deluge/plugins/WebUi/deluge/plugins/webui/gtkui.py
+++ b/deluge/plugins/WebUi/deluge/plugins/webui/gtkui.py
@@ -80,7 +80,7 @@ class GtkUI(Gtk3PluginBase):
 
         vbox = self.builder.get_object('prefs_box')
 
-        hbox = Gtk.HBox()
+        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=0)
         icon = Gtk.Image.new_from_icon_name('dialog-error', Gtk.IconSize.BUTTON)
         icon.set_padding(5, 5)
         hbox.pack_start(icon, False, False, 0)
diff --git a/deluge/ui/gtk3/dialogs.py b/deluge/ui/gtk3/dialogs.py
index 77c38ed50..5169ab453 100644
--- a/deluge/ui/gtk3/dialogs.py
+++ b/deluge/ui/gtk3/dialogs.py
@@ -49,7 +49,7 @@ class BaseDialog(Gtk.Dialog):
         # Setup all the formatting and such to make our dialog look pretty
         self.set_border_width(5)
         self.set_default_size(200, 100)
-        hbox = Gtk.HBox(spacing=5)
+        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=5)
         image = Gtk.Image()
         if icon.endswith('.svg') or icon.endswith('.png'):
             # Hack for Windows since it doesn't support svg
@@ -60,7 +60,7 @@ class BaseDialog(Gtk.Dialog):
             image.set_from_icon_name(icon, Gtk.IconSize.LARGE_TOOLBAR)
         image.set_alignment(0.5, 0.0)
         hbox.pack_start(image, False, False, 0)
-        vbox = Gtk.VBox(spacing=5)
+        vbox = Gtk.Box.new(Gtk.Orientation.VERTICAL, spacing=5)
         tlabel = Gtk.Label(label=text)
         tlabel.set_use_markup(True)
         tlabel.set_line_wrap(True)
@@ -365,7 +365,7 @@ class OtherDialog(BaseDialog):
             parent,
         )
 
-        hbox = Gtk.HBox(spacing=5)
+        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=5)
         alignment_spacer = Gtk.Alignment()
         hbox.pack_start(alignment_spacer, True, True, 0)
         alignment_spin = Gtk.Alignment(xalign=1, yalign=0.5, xscale=1, yscale=1)
diff --git a/deluge/ui/gtk3/path_combo_chooser.py b/deluge/ui/gtk3/path_combo_chooser.py
index e0fb5ab58..041efdbf0 100755
--- a/deluge/ui/gtk3/path_combo_chooser.py
+++ b/deluge/ui/gtk3/path_combo_chooser.py
@@ -1135,7 +1135,7 @@ class PathChooserComboBox(Gtk.Box, StoredValuesPopup, GObject.GObject):
     ):
         Gtk.Box.__init__(self)
         GObject.GObject.__init__(self)
-        self.list_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
+        self.list_box = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=0)
         self._stored_values_popping_down = False
         self.filechooser_visible = True
         self.filechooser_enabled = True
@@ -1694,7 +1694,7 @@ if __name__ == '__main__':
     w.set_title('ComboEntry example')
     w.connect('delete-event', Gtk.main_quit)
 
-    box1 = Gtk.Box(Gtk.Orientation.VERTICAL, 0)
+    box1 = Gtk.Box.new(Gtk.Orientation.VERTICAL, spacing=0)
 
     def get_resource2(filename):
         return '%s/glade/%s' % (os.path.abspath(os.path.dirname(sys.argv[0])), filename)
diff --git a/deluge/ui/gtk3/preferences.py b/deluge/ui/gtk3/preferences.py
index 8d2c194a5..c91e7f2ed 100644
--- a/deluge/ui/gtk3/preferences.py
+++ b/deluge/ui/gtk3/preferences.py
@@ -246,7 +246,7 @@ class Preferences(component.Component):
         parent = widget.get_parent()
         if parent:
             parent.remove(widget)
-        vbox = Gtk.VBox()
+        vbox = Gtk.Box.new(Gtk.Orientation.VERTICAL, spacing=0)
         label = Gtk.Label()
         label.set_use_markup(True)
         label.set_markup('<b><i><big>' + name + '</big></i></b>')
diff --git a/deluge/ui/gtk3/statusbar.py b/deluge/ui/gtk3/statusbar.py
index cc650b9dc..265e7c886 100644
--- a/deluge/ui/gtk3/statusbar.py
+++ b/deluge/ui/gtk3/statusbar.py
@@ -38,8 +38,7 @@ class StatusBarItem(object):
     ):
         self._widgets = []
         self._ebox = Gtk.EventBox()
-        self._hbox = Gtk.HBox()
-        self._hbox.set_spacing(3)
+        self._hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=3)
         self._image = Gtk.Image()
         self._label = Gtk.Label()
         if image or icon or stock:
@@ -141,9 +140,8 @@ class StatusBar(component.Component):
             'dht': self._on_dht,
         }
         self.current_warnings = []
-        # Add a HBox to the statusbar after removing the initial label widget
-        self.hbox = Gtk.HBox()
-        self.hbox.set_spacing(10)
+        # Add hbox to the statusbar after removing the initial label widget
+        self.hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=10)
         align = Gtk.Alignment()
         align.set_padding(2, 0, 3, 0)
         align.add(self.hbox)