diff --git a/src/SimNDT/gui/resources/ui/addrectangle.ui b/src/SimNDT/gui/resources/ui/addrectangle.ui
new file mode 100644
index 0000000..815dcec
--- /dev/null
+++ b/src/SimNDT/gui/resources/ui/addrectangle.ui
@@ -0,0 +1,290 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>addRectangleDialog</class>
+ <widget class="QDialog" name="addRectangleDialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>220</width>
+    <height>258</height>
+   </rect>
+  </property>
+  <property name="minimumSize">
+   <size>
+    <width>220</width>
+    <height>258</height>
+   </size>
+  </property>
+  <property name="maximumSize">
+   <size>
+    <width>220</width>
+    <height>258</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>Add Rectangle</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="resources.qrc">
+    <normaloff>:/rectangle.png</normaloff>:/rectangle.png</iconset>
+  </property>
+  <property name="toolTip">
+   <string>Add Rectangle</string>
+  </property>
+  <property name="statusTip">
+   <string>Add Rectangle</string>
+  </property>
+  <property name="locale">
+   <locale language="English" country="UnitedStates"/>
+  </property>
+  <property name="sizeGripEnabled">
+   <bool>false</bool>
+  </property>
+  <property name="modal">
+   <bool>false</bool>
+  </property>
+  <widget class="QDialogButtonBox" name="buttonBox">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>220</y>
+     <width>191</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <property name="orientation">
+    <enum>Qt::Horizontal</enum>
+   </property>
+   <property name="standardButtons">
+    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+   </property>
+  </widget>
+  <widget class="QWidget" name="formLayoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>20</y>
+     <width>181</width>
+     <height>181</height>
+    </rect>
+   </property>
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QLabel" name="centerXLabel">
+      <property name="text">
+       <string>Center X (mm)</string>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="1">
+     <widget class="QLineEdit" name="centerXLineEdit">
+      <property name="minimumSize">
+       <size>
+        <width>80</width>
+        <height>0</height>
+       </size>
+      </property>
+      <property name="maximumSize">
+       <size>
+        <width>80</width>
+        <height>21</height>
+       </size>
+      </property>
+      <property name="toolTip">
+       <string>Center X</string>
+      </property>
+      <property name="statusTip">
+       <string>Center X</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QLabel" name="centerYLabel">
+      <property name="text">
+       <string>Center Y (mm)</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="1">
+     <widget class="QLineEdit" name="centerYLineEdit">
+      <property name="minimumSize">
+       <size>
+        <width>80</width>
+        <height>0</height>
+       </size>
+      </property>
+      <property name="maximumSize">
+       <size>
+        <width>80</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="toolTip">
+       <string>Center Y</string>
+      </property>
+      <property name="statusTip">
+       <string>Center Y</string>
+      </property>
+     </widget>
+    </item>
+    <item row="2" column="0">
+     <widget class="QLabel" name="widthLabel">
+      <property name="text">
+       <string>Width (mm)</string>
+      </property>
+     </widget>
+    </item>
+    <item row="2" column="1">
+     <widget class="QLineEdit" name="widthLineEdit">
+      <property name="minimumSize">
+       <size>
+        <width>80</width>
+        <height>0</height>
+       </size>
+      </property>
+      <property name="maximumSize">
+       <size>
+        <width>80</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="toolTip">
+       <string>Width</string>
+      </property>
+      <property name="statusTip">
+       <string>Width</string>
+      </property>
+     </widget>
+    </item>
+    <item row="3" column="0">
+     <widget class="QLabel" name="heightLabel">
+      <property name="toolTip">
+       <string>Add Rectangle</string>
+      </property>
+      <property name="statusTip">
+       <string>Add Rectangle</string>
+      </property>
+      <property name="text">
+       <string>Height (mm)</string>
+      </property>
+     </widget>
+    </item>
+    <item row="3" column="1">
+     <widget class="QLineEdit" name="heightLineEdit">
+      <property name="minimumSize">
+       <size>
+        <width>80</width>
+        <height>0</height>
+       </size>
+      </property>
+      <property name="maximumSize">
+       <size>
+        <width>80</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="toolTip">
+       <string>Height</string>
+      </property>
+      <property name="statusTip">
+       <string>Height</string>
+      </property>
+     </widget>
+    </item>
+    <item row="4" column="0">
+     <widget class="QLabel" name="angleLabel">
+      <property name="text">
+       <string>Angle</string>
+      </property>
+     </widget>
+    </item>
+    <item row="4" column="1">
+     <widget class="QLineEdit" name="angleLineEdit">
+      <property name="minimumSize">
+       <size>
+        <width>80</width>
+        <height>0</height>
+       </size>
+      </property>
+      <property name="maximumSize">
+       <size>
+        <width>80</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="toolTip">
+       <string>Angle</string>
+      </property>
+      <property name="statusTip">
+       <string>Angle</string>
+      </property>
+     </widget>
+    </item>
+    <item row="5" column="0">
+     <widget class="QLabel" name="labelLabel">
+      <property name="text">
+       <string>Label</string>
+      </property>
+     </widget>
+    </item>
+    <item row="5" column="1">
+     <widget class="QSpinBox" name="labelSpinBox">
+      <property name="toolTip">
+       <string>Label</string>
+      </property>
+      <property name="statusTip">
+       <string>Label</string>
+      </property>
+      <property name="maximum">
+       <number>240</number>
+      </property>
+      <property name="singleStep">
+       <number>40</number>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources>
+  <include location="resources.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>addRectangleDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>addRectangleDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>