diff --git a/dev/Repeater/APITests/FlowLayoutTests.cs b/dev/Repeater/APITests/FlowLayoutTests.cs
index 7ed6a53a01..aa60b01c86 100644
--- a/dev/Repeater/APITests/FlowLayoutTests.cs
+++ b/dev/Repeater/APITests/FlowLayoutTests.cs
@@ -136,16 +136,16 @@ public void ValidateGridLayout()
                         canvas.Children.Add(panel);
                         Content = canvas;
                         Content.UpdateLayout();
-                        int minItemSpacing = 0;
-                        int lineSpacing = 0;
-                        ValidateGridLayoutChildrenLayoutBounds(om, (i) => panel.Children[i], itemMinorSize, itemMajorSize, minItemSpacing, lineSpacing, panel.Children.Count, panel.DesiredSize);
-
-                        minItemSpacing = 10;
-                        lineSpacing = 10;
-                        ((UniformGridLayout)panel.Layout).MinRowSpacing = minItemSpacing;
-                        ((UniformGridLayout)panel.Layout).MinColumnSpacing = lineSpacing;
+                        int minRowSpacing = 0;
+                        int minColumnSpacing = 0;
+                        ValidateGridLayoutChildrenLayoutBounds(om, (i) => panel.Children[i], itemMinorSize, itemMajorSize, minRowSpacing, minColumnSpacing, panel.Children.Count, panel.DesiredSize);
+
+                        minRowSpacing = 5;
+                        minColumnSpacing = 10;
+                        ((UniformGridLayout)panel.Layout).MinRowSpacing = minRowSpacing;
+                        ((UniformGridLayout)panel.Layout).MinColumnSpacing = minColumnSpacing;
                         Content.UpdateLayout();
-                        ValidateGridLayoutChildrenLayoutBounds(om, (i) => panel.Children[i], itemMinorSize, itemMajorSize, minItemSpacing, lineSpacing, panel.Children.Count, panel.DesiredSize);
+                        ValidateGridLayoutChildrenLayoutBounds(om, (i) => panel.Children[i], itemMinorSize, itemMajorSize, minRowSpacing, minColumnSpacing, panel.Children.Count, panel.DesiredSize);
                     }
                 }
             });
@@ -1245,13 +1245,16 @@ private void ValidateGridLayoutChildrenLayoutBounds(
             Func<int, UIElement> elementAtIndexFunc,
             double itemMinorSize,
             double itemMajorSize,
-            double minItemSpacing,
-            double lineSpacing,
+            double minRowSpacing,
+            double minColumnSpacing,
             int childCount,
             Size desiredSize)
         {
             var expectedRect = om.MinorMajorRect(0, 0, itemMinorSize, itemMajorSize);
             double extentMajor = 0;
+            var minItemSpacing = om.ScrollOrientation == ScrollOrientation.Vertical ? minColumnSpacing : minRowSpacing;
+            var lineSpacing = om.ScrollOrientation == ScrollOrientation.Vertical ? minRowSpacing : minColumnSpacing;
+
             for (int i = 0; i < childCount; i++)
             {
                 var child = (FrameworkElement)elementAtIndexFunc(i);
@@ -1384,8 +1387,9 @@ private void ValidateLayoutEstimations(ScrollOrientation scrollOrientation, Layo
                         break;
 
                     case LayoutChoice.Grid:
-
-                        layout = new UniformGridLayout() { MinItemWidth = itemSize, MinItemHeight = itemSize, MinColumnSpacing = lineSpacing };
+                        var minRowSpacing = om.ScrollOrientation == ScrollOrientation.Vertical ? lineSpacing : 0;
+                        var minColumnSpacing = om.ScrollOrientation == ScrollOrientation.Horizontal ? lineSpacing : 0;
+                        layout = new UniformGridLayout() { MinItemWidth = itemSize, MinItemHeight = itemSize, MinRowSpacing = minRowSpacing, MinColumnSpacing = minColumnSpacing };
                         break;
 
                     case LayoutChoice.Flow:
diff --git a/dev/Repeater/UniformGridLayout.h b/dev/Repeater/UniformGridLayout.h
index 857a98da3f..aec58e5f3b 100644
--- a/dev/Repeater/UniformGridLayout.h
+++ b/dev/Repeater/UniformGridLayout.h
@@ -95,12 +95,13 @@ class UniformGridLayout :
 
     double LineSpacing()
     {
-        return ScrollOrientation() == ScrollOrientation::Vertical ? m_minColumnSpacing : m_minRowSpacing;
+        return Orientation() == winrt::Orientation::Horizontal ? m_minRowSpacing: m_minColumnSpacing;
+
     }
 
     double MinItemSpacing()
     {
-        return ScrollOrientation() == ScrollOrientation::Vertical ? m_minRowSpacing : m_minColumnSpacing;
+        return Orientation() == winrt::Orientation::Horizontal ? m_minColumnSpacing: m_minRowSpacing;
     }
 
     // Fields
diff --git a/dev/Repeater/UniformGridLayoutState.cpp b/dev/Repeater/UniformGridLayoutState.cpp
index be27344ab7..b75cb60edb 100644
--- a/dev/Repeater/UniformGridLayoutState.cpp
+++ b/dev/Repeater/UniformGridLayoutState.cpp
@@ -82,7 +82,7 @@ void UniformGridLayoutState::SetSize(
     m_effectiveItemHeight = (std::isnan(LayoutItemHeight) ? UIElement.DesiredSize().Height : LayoutItemHeight);
 
     auto availableSizeMinor = orientation == winrt::Orientation::Horizontal ? availableSize.Width : availableSize.Height;
-    auto minorItemSpacing = orientation == winrt::Orientation::Horizontal ? minRowSpacing : minColumnSpacing;
+    auto minorItemSpacing = orientation == winrt::Orientation::Vertical ? minRowSpacing : minColumnSpacing;
 
     auto itemSizeMinor = orientation == winrt::Orientation::Horizontal ? m_effectiveItemWidth : m_effectiveItemHeight;
     itemSizeMinor += minorItemSpacing;