diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -28,7 +28,6 @@
     'rsrc/css/aphront/table-view.css' => 'e3632cc9',
     'rsrc/css/aphront/tokenizer.css' => '04875312',
     'rsrc/css/aphront/tooltip.css' => '7672b60f',
-    'rsrc/css/aphront/two-column.css' => '16ab3ad2',
     'rsrc/css/aphront/typeahead-browse.css' => 'd8581d2c',
     'rsrc/css/aphront/typeahead.css' => '0e403212',
     'rsrc/css/application/almanac/almanac.css' => 'dbb9b3af',
@@ -500,7 +499,6 @@
     'aphront-table-view-css' => 'e3632cc9',
     'aphront-tokenizer-control-css' => '04875312',
     'aphront-tooltip-css' => '7672b60f',
-    'aphront-two-column-view-css' => '16ab3ad2',
     'aphront-typeahead-control-css' => '0e403212',
     'auth-css' => '0877ed6e',
     'bulk-job-css' => 'df9c1d4a',
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -165,7 +165,6 @@
     'AphrontTableView' => 'view/control/AphrontTableView.php',
     'AphrontTagView' => 'view/AphrontTagView.php',
     'AphrontTokenizerTemplateView' => 'view/control/AphrontTokenizerTemplateView.php',
-    'AphrontTwoColumnView' => 'view/layout/AphrontTwoColumnView.php',
     'AphrontTypeaheadTemplateView' => 'view/control/AphrontTypeaheadTemplateView.php',
     'AphrontURIMapper' => 'aphront/AphrontURIMapper.php',
     'AphrontUnhandledExceptionResponse' => 'aphront/response/AphrontUnhandledExceptionResponse.php',
@@ -2979,7 +2978,6 @@
     'PhabricatorTrivialTestCase' => 'infrastructure/testing/__tests__/PhabricatorTrivialTestCase.php',
     'PhabricatorTwitchAuthProvider' => 'applications/auth/provider/PhabricatorTwitchAuthProvider.php',
     'PhabricatorTwitterAuthProvider' => 'applications/auth/provider/PhabricatorTwitterAuthProvider.php',
-    'PhabricatorTwoColumnUIExample' => 'applications/uiexample/examples/PhabricatorTwoColumnUIExample.php',
     'PhabricatorTypeaheadApplication' => 'applications/typeahead/application/PhabricatorTypeaheadApplication.php',
     'PhabricatorTypeaheadCompositeDatasource' => 'applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php',
     'PhabricatorTypeaheadDatasource' => 'applications/typeahead/datasource/PhabricatorTypeaheadDatasource.php',
@@ -3760,7 +3758,6 @@
     'AphrontTableView' => 'AphrontView',
     'AphrontTagView' => 'AphrontView',
     'AphrontTokenizerTemplateView' => 'AphrontView',
-    'AphrontTwoColumnView' => 'AphrontView',
     'AphrontTypeaheadTemplateView' => 'AphrontView',
     'AphrontURIMapper' => 'Phobject',
     'AphrontUnhandledExceptionResponse' => 'AphrontStandaloneHTMLResponse',
@@ -7034,7 +7031,6 @@
     'PhabricatorTrivialTestCase' => 'PhabricatorTestCase',
     'PhabricatorTwitchAuthProvider' => 'PhabricatorOAuth2AuthProvider',
     'PhabricatorTwitterAuthProvider' => 'PhabricatorOAuth1AuthProvider',
-    'PhabricatorTwoColumnUIExample' => 'PhabricatorUIExample',
     'PhabricatorTypeaheadApplication' => 'PhabricatorApplication',
     'PhabricatorTypeaheadCompositeDatasource' => 'PhabricatorTypeaheadDatasource',
     'PhabricatorTypeaheadDatasource' => 'Phobject',
diff --git a/src/applications/uiexample/examples/PhabricatorTwoColumnUIExample.php b/src/applications/uiexample/examples/PhabricatorTwoColumnUIExample.php
deleted file mode 100644
--- a/src/applications/uiexample/examples/PhabricatorTwoColumnUIExample.php
+++ /dev/null
@@ -1,36 +0,0 @@
-<?php
-
-final class PhabricatorTwoColumnUIExample extends PhabricatorUIExample {
-
-  public function getName() {
-    return pht('Two Column Layout');
-  }
-
-  public function getDescription() {
-    return pht('Two Column mobile friendly layout');
-  }
-
-  public function renderExample() {
-
-    $main = phutil_tag(
-      'div',
-      array(
-        'style' => 'border: 1px solid blue; padding: 20px;',
-      ),
-      'Mary, mary quite contrary.');
-
-    $side = phutil_tag(
-      'div',
-      array(
-        'style' => 'border: 1px solid red; padding: 20px;',
-      ),
-      'How does your garden grow?');
-
-
-    $content = id(new AphrontTwoColumnView())
-      ->setMainColumn($main)
-      ->setSideColumn($side);
-
-    return $content;
-  }
-}
diff --git a/src/view/layout/AphrontTwoColumnView.php b/src/view/layout/AphrontTwoColumnView.php
deleted file mode 100644
--- a/src/view/layout/AphrontTwoColumnView.php
+++ /dev/null
@@ -1,66 +0,0 @@
-<?php
-
-final class AphrontTwoColumnView extends AphrontView {
-
-  private $mainColumn;
-  private $sideColumn;
-  private $centered = false;
-  private $padding = true;
-
-  public function setMainColumn($main) {
-    $this->mainColumn = $main;
-    return $this;
-  }
-
-  public function setSideColumn($side) {
-    $this->sideColumn = $side;
-    return $this;
-  }
-
-  public function setCentered($centered) {
-    $this->centered = $centered;
-    return $this;
-  }
-
-  public function setNoPadding($padding) {
-    $this->padding = $padding;
-    return $this;
-  }
-
-  public function render() {
-    require_celerity_resource('aphront-two-column-view-css');
-
-    $main = phutil_tag(
-      'div',
-      array(
-        'class' => 'aphront-main-column',
-      ),
-      $this->mainColumn);
-
-    $side = phutil_tag(
-      'div',
-      array(
-        'class' => 'aphront-side-column',
-      ),
-      $this->sideColumn);
-
-    $classes = array('aphront-two-column');
-    if ($this->centered) {
-      $classes = array('aphront-two-column-centered');
-    }
-
-    if ($this->padding) {
-      $classes[] = 'aphront-two-column-padded';
-    }
-
-    return phutil_tag(
-      'div',
-      array(
-        'class' => implode(' ', $classes),
-      ),
-      array(
-        $main,
-        $side,
-      ));
-  }
-}
diff --git a/webroot/rsrc/css/aphront/two-column.css b/webroot/rsrc/css/aphront/two-column.css
deleted file mode 100644
--- a/webroot/rsrc/css/aphront/two-column.css
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
- * @provides aphront-two-column-view-css
- */
-
-.aphront-two-column {
-  position: relative;
-}
-
-.device-desktop .aphront-two-column.aphront-two-column-padded {
-  margin: 20px;
-}
-
-.device-desktop .aphront-two-column .aphront-main-column {
-  margin-right: 300px;
-}
-
-.device-desktop .aphront-two-column .aphront-side-column {
-  width: 300px;
-  position: absolute;
-  top: 0;
-  right: 0;
-}
-
-.device-desktop .aphront-two-column-centered {
-  width: 980px;
-  margin: 0 auto;
-}
-
-.device-desktop .aphront-two-column-centered .aphront-main-column {
-  float: left;
-  width: 820px;
-}
-
-.device-desktop .aphront-two-column-centered .aphront-side-column {
-  width: 160px;
-  float: right;
-}
-
-.device-phone .aphront-two-column.aphront-two-column-padded {
-  margin: 10px;
-}