diff --git a/Aucma.Core.SheetMetal/Views/MainWindow.xaml b/Aucma.Core.SheetMetal/Views/MainWindow.xaml
index 614ad5b..7fb8953 100644
--- a/Aucma.Core.SheetMetal/Views/MainWindow.xaml
+++ b/Aucma.Core.SheetMetal/Views/MainWindow.xaml
@@ -28,9 +28,9 @@
             <Border Grid.Row="0" BorderBrush="Red" BorderThickness="0" CornerRadius="5" Background="Transparent" Margin="2,2">
                 <Grid>
                     <Grid.ColumnDefinitions>
-                        <ColumnDefinition Width="2*"/>
+                        <ColumnDefinition Width="3*"/>
                         <ColumnDefinition Width="7*"/>
-                        <ColumnDefinition Width="2*"/>
+                        <ColumnDefinition Width="3*"/>
                     </Grid.ColumnDefinitions>
 
                     <StackPanel Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center">