diff --git a/cave/com.raytheon.uf.viz.d2d.ui/plugin.xml b/cave/com.raytheon.uf.viz.d2d.ui/plugin.xml
index b2bf7b9127..71fd046f17 100644
--- a/cave/com.raytheon.uf.viz.d2d.ui/plugin.xml
+++ b/cave/com.raytheon.uf.viz.d2d.ui/plugin.xml
@@ -251,7 +251,7 @@
                    label="1 Pane Layout">
                 <parameter
                       name="sideViews"
-                      value="1">
+                      value="0">
                 </parameter>
              </command>
              <command
diff --git a/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/actions/ChangeD2DLayoutAction.java b/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/actions/ChangeD2DLayoutAction.java
index f02f964f38..29bcd18382 100644
--- a/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/actions/ChangeD2DLayoutAction.java
+++ b/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/actions/ChangeD2DLayoutAction.java
@@ -51,7 +51,9 @@ import com.raytheon.viz.ui.EditorUtil;
  * Jan 23, 2018 7082       njensen     Rewrote execute() to use Eclipse 4 MUIElements
  *                                     to resize the display for differing number of
  *                                     side views
- * 
+ * Aug 24, 2022            srcarter    If no side panes, make the side width 0
+ * Aug 29, 2022            srcarter    Set the initial side pane count to 0
+ *
  * </pre>
  * 
  * @author mschenke
@@ -64,7 +66,7 @@ public class ChangeD2DLayoutAction extends AbstractHandler {
     public static int getViewCount() {
         Integer views = viewMap
                 .get(PlatformUI.getWorkbench().getActiveWorkbenchWindow());
-        return views != null ? views : 4;
+        return views != null ? views : 0;
     }
 
     @Override
@@ -164,10 +166,17 @@ public class ChangeD2DLayoutAction extends AbstractHandler {
      */
     private void sizeWidth(MElementContainer<MUIElement> sideViewsContainer,
             int nSideViews) {
+        int width;
         if (nSideViews > 5) {
             nSideViews = 5;
         }
-        int width = (6 - nSideViews) * 1000;
+        // When switching back to single pane (nSideViews == 0) make sure
+        // the side panes are completely collapsed
+        if (nSideViews == 0) {
+            width = 0;
+        } else {
+            width = (6 - nSideViews) * 1000;
+        }
         int diff = 10000 - width;
         MElementContainer<MUIElement> screenContainer = sideViewsContainer
                 .getParent();
diff --git a/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/perspectives/D2D5Pane.java b/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/perspectives/D2D5Pane.java
index ec089f16a9..ff710f98d7 100644
--- a/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/perspectives/D2D5Pane.java
+++ b/cave/com.raytheon.uf.viz.d2d.ui/src/com/raytheon/uf/viz/d2d/ui/perspectives/D2D5Pane.java
@@ -51,7 +51,8 @@ import com.raytheon.viz.ui.UiUtil;
  * 7/1/06                   chammack    Initial Creation.
  * Mar 21, 2013       1638  mschenke    Changed map scales not tied to d2d
  * Oct 10, 2013       2104  mschenke    Switched to use MapScalesManager
- * 
+ * Aug 29, 2022             srcarter    Default to single pane view, with zero side panel width
+ *
  * </pre>
  * 
  * @author chammack
@@ -65,10 +66,10 @@ public class D2D5Pane implements IPerspectiveFactory {
     private static final String BASE_VIEW_ID_PREFIX = SideView.ID
             + UiUtil.SECONDARY_ID_SEPARATOR + "sideView";
 
-    private static final float THREE_PANE_WIDTH = 0.4f;
-
     private static final float FIVE_PANE_WIDTH = 0.2f;
 
+    private static final float ZERO_PANE_WIDTH = 0.0f;
+
     /*
      * (non-Javadoc)
      * 
@@ -93,7 +94,7 @@ public class D2D5Pane implements IPerspectiveFactory {
             }
         }
 
-        int numViews = ChangeD2DLayoutAction.getViewCount() == 2 ? 2
+        int numViews = ChangeD2DLayoutAction.getViewCount() == 0 ? 0
                 : baseViewsToAdd.size();
 
         String lastAdded = null;
@@ -108,7 +109,7 @@ public class D2D5Pane implements IPerspectiveFactory {
                             baseView,
                             false,
                             IPageLayout.LEFT,
-                            ChangeD2DLayoutAction.getViewCount() == 2 ? THREE_PANE_WIDTH
+                            ChangeD2DLayoutAction.getViewCount() == 0 ? ZERO_PANE_WIDTH
                                     : FIVE_PANE_WIDTH, editorArea);
                 } else {
                     layout.addStandaloneView(baseView, false,