Hi Bront,

Have you considered to size the div information via CSS?

For example:

<h2>Embedded Files Web Part</h2>

<div id='fileDiv'></div>
<style>
#fileDiv {
    height:1000px;
}
</style>

<script type="text/javascript">
LABKEY.requiresScript("fileBrowser.js");
LABKEY.requiresScript("FileContent.js");
LABKEY.requiresScript("FileUploadField.js");
LABKEY.requiresScript("PipelineAction.js"); //required if in production mode

Ext.onReady(function() {

    var wikiWebPartRenderer = new LABKEY.WebPart({
      partName: 'Files',
      renderTo: 'fileDiv'
    });

wikiWebPartRenderer.render();
});
</script>