diff --git a/quickstep/res/values-land/dimens.xml b/quickstep/res/values-land/dimens.xml
index ee594c8..2b17b93 100644
--- a/quickstep/res/values-land/dimens.xml
+++ b/quickstep/res/values-land/dimens.xml
@@ -84,4 +84,5 @@
 
     <dimen name="keyboard_quick_switch_taskview_width">205dp</dimen>
     <dimen name="keyboard_quick_switch_taskview_height">119dp</dimen>
+
 </resources>
diff --git a/quickstep/res/values-sw600dp-land/dimens.xml b/quickstep/res/values-sw600dp-land/dimens.xml
index 9cb3fec..5e9a177 100644
--- a/quickstep/res/values-sw600dp-land/dimens.xml
+++ b/quickstep/res/values-sw600dp-land/dimens.xml
@@ -27,4 +27,10 @@
     <dimen name="gesture_tutorial_menu_done_button_top_spacing">40dp</dimen>
     <dimen name="gesture_tutorial_menu_back_shape_bottom_margin">49dp</dimen>
 
+    <!-- Grid Only Overview -->
+    <!-- The top margin above the top row of tasks in grid only overview -->
+    <dimen name="overview_top_margin_grid_only">24dp</dimen>
+    <!-- The bottom margin above the bottom row of tasks in grid only overview -->
+    <dimen name="overview_bottom_margin_grid_only">40dp</dimen>
+
 </resources>
diff --git a/quickstep/res/values-sw600dp/dimens.xml b/quickstep/res/values-sw600dp/dimens.xml
index daf1f63..f9528b3 100644
--- a/quickstep/res/values-sw600dp/dimens.xml
+++ b/quickstep/res/values-sw600dp/dimens.xml
@@ -33,6 +33,10 @@
     <dimen name="overview_page_spacing">36dp</dimen>
     <!--  The space to the left and to the right of the "Clear all" button  -->
     <dimen name="overview_grid_side_margin">64dp</dimen>
+    <!-- The top margin above the top row of tasks in grid only overview -->
+    <dimen name="overview_top_margin_grid_only">80dp</dimen>
+    <!-- The bottom margin above the bottom row of tasks in grid only overview -->
+    <dimen name="overview_bottom_margin_grid_only">80dp</dimen>
     <!--  Overview actions  -->
     <dimen name="overview_actions_top_margin">24dp</dimen>
 
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index 25389c5..88933f4 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -267,7 +267,7 @@
         Resources res = context.getResources();
         float maxScale = res.getFloat(R.dimen.overview_max_scale);
         Rect gridRect = new Rect();
-        calculateGridSize(dp, gridRect);
+        calculateGridSize(dp, context, gridRect);
         calculateTaskSizeInternal(context, dp, gridRect, maxScale, Gravity.CENTER, outRect);
     }
 
@@ -321,10 +321,16 @@
     /**
      * Calculates the overview grid size for the provided device configuration.
      */
-    public final void calculateGridSize(DeviceProfile dp, Rect outRect) {
+    public final void calculateGridSize(DeviceProfile dp, Context context, Rect outRect) {
         Rect insets = dp.getInsets();
         int topMargin = dp.overviewTaskThumbnailTopMarginPx;
         int bottomMargin = dp.getOverviewActionsClaimedSpace();
+        if (dp.isTaskbarPresent && Flags.enableGridOnlyOverview()) {
+            topMargin += context.getResources().getDimensionPixelSize(
+                    R.dimen.overview_top_margin_grid_only);
+            bottomMargin += context.getResources().getDimensionPixelSize(
+                    R.dimen.overview_bottom_margin_grid_only);
+        }
         int sideMargin = dp.overviewGridSideMargin;
 
         outRect.set(0, 0, dp.widthPx, dp.heightPx);
@@ -340,7 +346,7 @@
         Resources res = context.getResources();
         Rect potentialTaskRect = new Rect();
         if (Flags.enableGridOnlyOverview()) {
-            calculateGridSize(dp, potentialTaskRect);
+            calculateGridSize(dp, context, potentialTaskRect);
         } else {
             calculateFocusTaskSize(context, dp, potentialTaskRect);
         }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 0a195c3..e6f015e 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -2064,7 +2064,7 @@
                 dp.widthPx - mInsets.right - mTempRect.right,
                 dp.heightPx - mInsets.bottom - mTempRect.bottom);
 
-        mSizeStrategy.calculateGridSize(mActivity.getDeviceProfile(),
+        mSizeStrategy.calculateGridSize(mActivity.getDeviceProfile(), mActivity,
                 mLastComputedGridSize);
         mSizeStrategy.calculateGridTaskSize(mActivity, mActivity.getDeviceProfile(),
                 mLastComputedGridTaskSize, mOrientationHandler);
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index e532dad..81c2337 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -412,6 +412,9 @@
     <dimen name="overview_grid_side_margin">0dp</dimen>
     <dimen name="overview_grid_row_spacing">0dp</dimen>
     <dimen name="overview_page_spacing">0dp</dimen>
+    <dimen name="overview_top_margin_grid_only">0dp</dimen>
+    <dimen name="overview_bottom_margin_grid_only">0dp</dimen>
+
     <dimen name="split_placeholder_size">72dp</dimen>
     <dimen name="split_placeholder_inset">16dp</dimen>
     <dimen name="split_placeholder_icon_size">44dp</dimen>
@@ -423,7 +426,7 @@
     <dimen name="split_instructions_drawable_padding">10dp</dimen>
     <dimen name="split_instructions_bottom_margin_phone_landscape">24dp</dimen>
     <dimen name="split_instructions_bottom_margin_phone_portrait">60dp</dimen>
-    
+
     <!-- Workspace grid visualization parameters -->
     <dimen name="grid_visualization_rounding_radius">28dp</dimen>
     <dimen name="grid_visualization_horizontal_cell_spacing">6dp</dimen>
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 4d7d441..bdffe46 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -300,6 +300,7 @@
     public final int stashedTaskbarHeight;
     public final int taskbarBottomMargin;
     public final int taskbarIconSize;
+    private final int mTransientTaskbarClaimedSpace;
     // If true, used to layout taskbar in 3 button navigation mode.
     public final boolean startAlignTaskbar;
     public final boolean isTransientTaskbar;
@@ -371,18 +372,23 @@
         }
 
         this.isTransientTaskbar = isTransientTaskbar;
+        int transientTaskbarIconSize = pxFromDp(inv.transientTaskbarIconSize[mTypeIndex], mMetrics);
+        int transientTaskbarBottomMargin =
+                res.getDimensionPixelSize(R.dimen.transient_taskbar_bottom_margin);
+        int transientTaskbarHeight =
+                Math.round((transientTaskbarIconSize * ICON_VISIBLE_AREA_FACTOR)
+                    + (2 * res.getDimensionPixelSize(R.dimen.transient_taskbar_padding)));
+        mTransientTaskbarClaimedSpace = transientTaskbarHeight + 2 * transientTaskbarBottomMargin;
+
         if (!isTaskbarPresent) {
             taskbarIconSize = taskbarHeight = stashedTaskbarHeight = taskbarBottomMargin = 0;
             startAlignTaskbar = false;
         } else if (isTransientTaskbar) {
-            float invTransientIconSizeDp = inv.transientTaskbarIconSize[mTypeIndex];
-            taskbarIconSize = pxFromDp(invTransientIconSizeDp, mMetrics);
-            taskbarHeight = Math.round((taskbarIconSize * ICON_VISIBLE_AREA_FACTOR)
-                    + (2 * res.getDimensionPixelSize(R.dimen.transient_taskbar_padding)));
+            taskbarIconSize = transientTaskbarIconSize;
+            taskbarHeight = transientTaskbarHeight;
             stashedTaskbarHeight =
                     res.getDimensionPixelSize(R.dimen.transient_taskbar_stashed_height);
-            taskbarBottomMargin =
-                    res.getDimensionPixelSize(R.dimen.transient_taskbar_bottom_margin);
+            taskbarBottomMargin = transientTaskbarBottomMargin;
             startAlignTaskbar = false;
         } else {
             taskbarIconSize = pxFromDp(ResourcesCompat.getFloat(res, R.dimen.taskbar_icon_size),
@@ -1759,14 +1765,9 @@
         return getHotseatBarBottomPadding() + launcherIconBottomSpace - taskbarIconBottomSpace;
     }
 
-    /**
-     * Returns the number of pixels required below OverviewActions excluding insets.
-     */
+    /** Returns the number of pixels required below OverviewActions. */
     public int getOverviewActionsClaimedSpaceBelow() {
-        if (isTaskbarPresent) {
-            return taskbarHeight + taskbarBottomMargin * 2;
-        }
-        return mInsets.bottom;
+        return isTaskbarPresent ? mTransientTaskbarClaimedSpace : mInsets.bottom;
     }
 
     /** Gets the space that the overview actions will take, including bottom margin. */
diff --git a/tests/Android.bp b/tests/Android.bp
index a3d05bb..8725b46 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -40,19 +40,14 @@
       "src/com/android/launcher3/ui/PortraitLandscapeRunner.java",
       "src/com/android/launcher3/ui/TestViewHelpers.java",
       "src/com/android/launcher3/util/LauncherLayoutBuilder.java",
+      "src/com/android/launcher3/util/ModelTestExtensions.kt",
       "src/com/android/launcher3/util/TestConstants.java",
       "src/com/android/launcher3/util/TestUtil.java",
       "src/com/android/launcher3/util/Wait.java",
       "src/com/android/launcher3/util/WidgetUtils.java",
-      "src/com/android/launcher3/util/rule/FailureWatcher.java",
-      "src/com/android/launcher3/util/rule/ViewCaptureRule.kt",
+      "src/com/android/launcher3/util/rule/*.java",
+      "src/com/android/launcher3/util/rule/*.kt",
       "src/com/android/launcher3/util/viewcapture_analysis/*.java",
-      "src/com/android/launcher3/util/rule/SamplerRule.java",
-      "src/com/android/launcher3/util/rule/ScreenRecordRule.java",
-      "src/com/android/launcher3/util/rule/ShellCommandRule.java",
-      "src/com/android/launcher3/util/rule/TestIsolationRule.java",
-      "src/com/android/launcher3/util/rule/TestStabilityRule.java",
-      "src/com/android/launcher3/util/ModelTestExtensions.kt",
       "src/com/android/launcher3/testcomponent/*.java",
       "src/com/android/launcher3/testcomponent/*.kt",
     ],
diff --git a/tests/src/com/android/launcher3/util/rule/SetFlagsRuleExt.kt b/tests/src/com/android/launcher3/util/rule/SetFlagsRuleExt.kt
new file mode 100644
index 0000000..d682456
--- /dev/null
+++ b/tests/src/com/android/launcher3/util/rule/SetFlagsRuleExt.kt
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.util.rule
+
+import android.platform.test.flag.junit.SetFlagsRule
+
+fun SetFlagsRule.setFlags(enabled: Boolean, vararg flagName: String) {
+    if (enabled) enableFlags(*flagName) else disableFlags(*flagName)
+}