How to change Magento contacts page into a 1 column layout

The layout for the page is controlled by app/design/frontend/default/YOURTEMPLATE/layout/contacts.xml

Find the code around line 37
<reference name=”root”>
<action method=”setTemplate”><template>page/2columns-left.phtml</template></action>
<action method=”setHeaderTitle” translate=”title” module=”contacts”><title>Contact Us</title>