diff --git a/Settings.ui b/Settings.ui
index 8d11049..cd4f188 100644
--- a/Settings.ui
+++ b/Settings.ui
@@ -2166,6 +2166,77 @@
             <property name="position">2</property>
           </packing>
         </child>
+        <child>
+          <object class="GtkFrame" id="taskbar_display">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label_xalign">0</property>
+            <property name="shadow_type">in</property>
+            <child>
+              <object class="GtkListBox" id="taskbar_display_listbox">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="selection_mode">none</property>
+                <child>
+                  <object class="GtkListBoxRow" id="taskbar_position_listboxrow">
+                    <property name="width_request">100</property>
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <child>
+                      <object class="GtkGrid" id="taskbar_position_grid">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="margin_left">12</property>
+                        <property name="margin_right">12</property>
+                        <property name="margin_top">12</property>
+                        <property name="margin_bottom">12</property>
+                        <property name="row_spacing">32</property>
+                        <property name="column_spacing">32</property>
+                        <child>
+                          <object class="GtkLabel" id="taskbar_position_label">
+                            <property name="visible">True</property>
+                            <property name="can_focus">False</property>
+                            <property name="hexpand">True</property>
+                            <property name="label" translatable="yes">Taskbar position</property>
+                            <property name="xalign">0</property>
+                          </object>
+                          <packing>
+                            <property name="left_attach">0</property>
+                            <property name="top_attach">0</property>
+                          </packing>
+                        </child>
+                        <child>
+                          <object class="GtkComboBoxText" id="taskbar_position_combo">
+                            <property name="visible">True</property>
+                            <property name="can_focus">False</property>
+                            <property name="valign">center</property>
+                            <items>
+                              <item id="LEFTPANEL" translatable="yes">Left panel</item>
+                              <item id="CENTEREDMONITOR" translatable="yes">Centered in monitor</item>
+                              <item id="CENTEREDCENTER" translatable="yes">Centered in center panel</item>
+                            </items>
+                          </object>
+                          <packing>
+                            <property name="left_attach">1</property>
+                            <property name="top_attach">0</property>
+                          </packing>
+                        </child>
+                      </object>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child type="label_item">
+              <placeholder/>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">3</property>
+          </packing>
+        </child>
       </object>
     </child>
     <child type="tab">
diff --git a/panel.js b/panel.js
index 6cbfa5b..61f215e 100644
--- a/panel.js
+++ b/panel.js
@@ -55,11 +55,21 @@ var dtpPanel = new Lang.Class({
     _init: function(settings) {
         this._dtpSettings = settings;
         this.panelStyle = new PanelStyle.dtpPanelStyle(settings);
+	//rebuild panel when taskar-position change
+        this._dtpSettings.connect('changed::taskbar-position', Lang.bind(this, function() {
+            this.disable();
+            this.enable();
+        }));
     },
 
     enable : function() {
         this.panel = Main.panel;
-        this.container = this.panel._leftBox;
+	//choose the leftBox or the centerBox to build taskbar
+        if (this._dtpSettings.get_string('taskbar-position') == 'LEFTPANEL') {
+            this.container = this.panel._leftBox;
+        } else {
+            this.container = this.panel._centerBox;
+        }
         this.appMenu = this.panel.statusArea.appMenu;
         this.panelBox = Main.layoutManager.panelBox;
         
@@ -328,29 +338,41 @@ var dtpPanel = new Lang.Class({
         let [centerMinWidth, centerNaturalWidth] = this.panel._centerBox.get_preferred_width(-1);
         let [rightMinWidth, rightNaturalWidth] = this.panel._rightBox.get_preferred_width(-1);
 
-        let sideWidth = allocWidth - rightNaturalWidth - centerNaturalWidth;
+	//I use ctb and cim variables to make diff reading easier. This must be replaced by if loups.
+        let taskbarPosition = this._dtpSettings.get_string('taskbar-position');
+        let ctb = (taskbarPosition != 'LEFTPANEL'); // ctb: centered taskbar
+        let cim = (taskbarPosition == 'CENTEREDMONITOR'); // cim: centered in monitor
+
+        let sideWidth, leftSideWidth, rightSideWidth;
+        if(ctb && !cim) {
+            leftSideWidth = (allocWidth - centerNaturalWidth + leftNaturalWidth - rightNaturalWidth) / 2;
+            rightSideWidth = (allocWidth - centerNaturalWidth - leftNaturalWidth + rightNaturalWidth) / 2;
+            sideWidth = 0;
+        } else {
+            sideWidth = leftSideWidth = rightSideWidth = (!ctb)*(allocWidth - rightNaturalWidth - centerNaturalWidth) + ctb*((allocWidth - centerNaturalWidth) / 2);
+        }
 
         let childBox = new Clutter.ActorBox();
 
         childBox.y1 = 0;
         childBox.y2 = allocHeight;
         if (this.panel.actor.get_text_direction() == Clutter.TextDirection.RTL) {
-            childBox.x1 = allocWidth - Math.min(Math.floor(sideWidth), leftNaturalWidth);
+            childBox.x1 = allocWidth - ctb*leftNaturalWidth - (!ctb)*sideWidth;
             childBox.x2 = allocWidth;
         } else {
             childBox.x1 = 0;
-            childBox.x2 = sideWidth;
+            childBox.x2 = ctb*leftNaturalWidth + (!ctb)*sideWidth;
         }
         this.panel._leftBox.allocate(childBox, flags, true);
 
         childBox.y1 = 0;
         childBox.y2 = allocHeight;
         if (this.panel.actor.get_text_direction() == Clutter.TextDirection.RTL) {
-            childBox.x1 = rightNaturalWidth;
-            childBox.x2 = childBox.x1 + centerNaturalWidth;
+            childBox.x1 = allocWidth - ctb*(allocWidth - Math.max(rightNaturalWidth, rightSideWidth)) - (!ctb)*(childBox.x1 + centerNaturalWidth);
+            childBox.x2 = allocWidth - ctb*(Math.max(leftNaturalWidth, leftSideWidth)) - (!ctb)*(allocWidth - centerNaturalWidth - rightNaturalWidth);
         } else {
-            childBox.x1 = allocWidth - centerNaturalWidth - rightNaturalWidth;
-            childBox.x2 = childBox.x1 + centerNaturalWidth;
+            childBox.x1 = ctb*(Math.max(leftNaturalWidth, leftSideWidth)) + (!ctb)*(allocWidth - centerNaturalWidth - rightNaturalWidth);
+            childBox.x2 = ctb*(allocWidth - Math.max(rightNaturalWidth, rightSideWidth)) + (!ctb)*(childBox.x1 + centerNaturalWidth);
         }
         this.panel._centerBox.allocate(childBox, flags, true);
 
diff --git a/prefs.js b/prefs.js
index 90aacd3..1015512 100644
--- a/prefs.js
+++ b/prefs.js
@@ -201,6 +201,10 @@ const Settings = new Lang.Class({
         this._builder.get_object('location_clock_combo').connect('changed', Lang.bind (this, function(widget) {
             this._settings.set_string('location-clock', widget.get_active_id());
         }));
+        this._builder.get_object('taskbar_position_combo').set_active_id(this._settings.get_string('taskbar-position'));
+        this._builder.get_object('taskbar_position_combo').connect('changed', Lang.bind (this, function(widget) {
+            this._settings.set_string('taskbar-position', widget.get_active_id());
+        }));
 
         // size options
         let panel_size_scale = this._builder.get_object('panel_size_scale');
diff --git a/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml b/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
index 7f8e32f..8605f33 100644
--- a/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
+++ b/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
@@ -22,6 +22,11 @@
     <value value='1' nick='STATUSLEFT'/>
     <value value='2' nick='STATUSRIGHT'/>
   </enum>
+  <enum id='org.gnome.shell.extensions.dash-to-panel.taskbarPosition'>
+    <value value='0' nick='LEFTPANEL'/>
+    <value value='1' nick='CENTEREDMONITOR'/>
+    <value value='2' nick='CENTEREDCENTER'/>
+  </enum>
   <enum id='org.gnome.shell.extensions.dash-to-panel.hotkeyPrefix'>
     <value value='0' nick='Super'/>
     <value value='1' nick='SuperAlt'/>
@@ -132,6 +137,11 @@
       <summary>Location of the clock</summary>
       <description>Set the location of the clock on the taskbar</description>
     </key>
+    <key name="taskbar-position" enum="org.gnome.shell.extensions.dash-to-panel.taskbarPosition">
+      <default>'LEFTPANEL'</default>
+      <summary>Position of the taskbar</summary>
+      <description>Set the position of the taskbar on the panel</description>
+    </key>
     <key type="b" name="show-show-apps-button">
       <default>true</default>
       <summary>Show applications button</summary>