diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22f22dd9..6f9bf239 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ This release added form fields (textinput, checkbox, and dropdown), drawing shap
 - FormField: Ability to add textinput, checkbox, and dropdown form elements - @ivanlanin GH-266
 - Setting: Ability to define document protection (readOnly, comments, trackedChanges, forms) - @ivanlanin
 - Setting: Ability to remove [Compatibility Mode] text in the MS Word title bar - @ivanlanin
+- SDT: Ability to add structured document tag elements (comboBox, dropDownList, date) - @ivanlanin
 
 ### Bugfixes
 
diff --git a/samples/Sample_34_SDT.php b/samples/Sample_34_SDT.php
index fc1e7de6..241dee2a 100644
--- a/samples/Sample_34_SDT.php
+++ b/samples/Sample_34_SDT.php
@@ -4,11 +4,20 @@ include_once 'Sample_Header.php';
 // New Word document
 echo date('H:i:s'), " Create new PhpWord object", EOL;
 $phpWord = new \PhpOffice\PhpWord\PhpWord();
-$phpWord->getProtection()->setEditing('forms');
 
 $section = $phpWord->addSection();
 
-$section->addSDT('comboBox')->setListItems(array('1' => 'Choice 1', '2' => 'Choice 2'));
+$textrun = $section->addTextRun();
+$textrun->addText('Combobox: ');
+$textrun->addSDT('comboBox')->setListItems(array('1' => 'Choice 1', '2' => 'Choice 2'));
+
+$textrun = $section->addTextRun();
+$textrun->addText('Date: ');
+$textrun->addSDT('date');
+
+$textrun = $section->addTextRun();
+$textrun->addText('Drop down list: ');
+$textrun->addSDT('dropDownList')->setListItems(array('1' => 'Choice 1', '2' => 'Choice 2'));
 
 // Save file
 echo write($phpWord, basename(__FILE__, '.php'), $writers);
diff --git a/src/PhpWord/Element/AbstractContainer.php b/src/PhpWord/Element/AbstractContainer.php
index afde4270..b934b2d8 100644
--- a/src/PhpWord/Element/AbstractContainer.php
+++ b/src/PhpWord/Element/AbstractContainer.php
@@ -193,6 +193,7 @@ abstract class AbstractContainer extends AbstractElement
             'Line'          => $allContainers,
             'Shape'         => $allContainers,
             'FormField'     => $allContainers,
+            'SDT'           => $allContainers,
             'TextRun'       => array('Section', 'Header', 'Footer', 'Cell', 'TextBox'),
             'ListItem'      => array('Section', 'Header', 'Footer', 'Cell', 'TextBox'),
             'ListItemRun'   => array('Section', 'Header', 'Footer', 'Cell', 'TextBox'),
@@ -206,7 +207,6 @@ abstract class AbstractContainer extends AbstractElement
             'TOC'           => array('Section'),
             'PageBreak'     => array('Section'),
             'Chart'         => array('Section'),
-            'SDT'           => array('Section'),
         );
         // Special condition, e.g. preservetext can only exists in cell when
         // the cell is located in header or footer
diff --git a/src/PhpWord/Writer/Word2007/Element/SDT.php b/src/PhpWord/Writer/Word2007/Element/SDT.php
index d25eaf98..94578e16 100644
--- a/src/PhpWord/Writer/Word2007/Element/SDT.php
+++ b/src/PhpWord/Writer/Word2007/Element/SDT.php
@@ -39,33 +39,72 @@ class SDT extends Text
             return;
         }
         $type = $element->getType();
-        $listItems = $element->getListItems();
+        $writeFormField = "write{$type}";
 
         $this->startElementP();
 
         $xmlWriter->startElement('w:sdt');
 
+        // Properties
         $xmlWriter->startElement('w:sdtPr');
         $xmlWriter->writeElementBlock('w:id', 'w:val', rand(100000000, 999999999));
         $xmlWriter->writeElementBlock('w:lock', 'w:val', 'sdtLocked');
-
-        $xmlWriter->startElement('w:placeholder');
-        $xmlWriter->writeElementBlock('w:docPart', 'w:val', 'string');
-        $xmlWriter->endElement(); // w:placeholder
-
-        $xmlWriter->startElement("w:{$type}");
-        foreach ($listItems as $key => $val) {
-            $xmlWriter->writeElementBlock('w:listItem', array('w:value' => $key, 'w:displayText' => $val));
-        }
-        $xmlWriter->endElement(); // w:{$type}
-
+        $this->$writeFormField($xmlWriter, $element);
         $xmlWriter->endElement(); // w:sdtPr
 
+        // Content
         $xmlWriter->startElement('w:sdtContent');
+        $xmlWriter->startElement('w:r');
+        $xmlWriter->startElement('w:t');
+        $xmlWriter->writeRaw('Pick value');
+        $xmlWriter->endElement(); // w:t
+        $xmlWriter->endElement(); // w:r
         $xmlWriter->endElement(); // w:sdtContent
 
         $xmlWriter->endElement(); // w:sdt
 
         $this->endElementP(); // w:p
     }
+
+    /**
+     * Write combo box
+     *
+     * @link http://www.datypic.com/sc/ooxml/t-w_CT_SdtComboBox.html
+     */
+    private function writeComboBox(XMLWriter $xmlWriter, SDTElement $element)
+    {
+        $type = $element->getType();
+        $listItems = $element->getListItems();
+
+        $xmlWriter->startElement("w:{$type}");
+        foreach ($listItems as $key => $val) {
+            $xmlWriter->writeElementBlock('w:listItem', array('w:value' => $key, 'w:displayText' => $val));
+        }
+        $xmlWriter->endElement(); // w:{$type}
+    }
+
+    /**
+     * Write drop down list
+     *
+     * @link http://www.datypic.com/sc/ooxml/t-w_CT_SdtDropDownList.html
+     */
+    private function writeDropDownList(XMLWriter $xmlWriter, SDTElement $element)
+    {
+        $this->writecomboBox($xmlWriter, $element);
+    }
+
+    /**
+     * Write date
+     *
+     * @link http://www.datypic.com/sc/ooxml/t-w_CT_SdtDate.html
+     */
+    private function writeDate(XMLWriter $xmlWriter, SDTElement $element)
+    {
+        $xmlWriter->startElement("w:date");
+        $xmlWriter->writeElementBlock('w:dateFormat', 'w:val', 'd/M/yyyy');
+        $xmlWriter->writeElementBlock('w:lid', 'w:val', 'en-US');
+        $xmlWriter->writeElementBlock('w:storeMappedDataAs', 'w:val', 'dateTime');
+        $xmlWriter->writeElementBlock('w:calendar', 'w:val', 'gregorian');
+        $xmlWriter->endElement(); // w:date
+    }
 }
diff --git a/tests/PhpWord/Tests/Writer/Word2007/ElementTest.php b/tests/PhpWord/Tests/Writer/Word2007/ElementTest.php
index 752415a1..92a74c15 100644
--- a/tests/PhpWord/Tests/Writer/Word2007/ElementTest.php
+++ b/tests/PhpWord/Tests/Writer/Word2007/ElementTest.php
@@ -196,4 +196,24 @@ class ElementTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($doc->elementExists($path . '/w:checkBox'));
         $this->assertTrue($doc->elementExists($path . '/w:ddList'));
     }
+
+    /**
+     * Test SDT elements
+     */
+    public function testSDTElements()
+    {
+        $phpWord = new PhpWord();
+        $section = $phpWord->addSection();
+
+        $section->addSDT('comboBox');
+        $section->addSDT('dropDownList');
+        $section->addSDT('date');
+
+        $doc = TestHelperDOCX::getDocument($phpWord);
+
+        $path = "/w:document/w:body/w:p/w:sdt/w:sdtPr";
+        $this->assertTrue($doc->elementExists($path . '/w:comboBox'));
+        $this->assertTrue($doc->elementExists($path . '/w:dropDownList'));
+        $this->assertTrue($doc->elementExists($path . '/w:date'));
+    }
 }