Layout Panels for UWP includes the following key features:
Create flow type layouts that wrap content vertically or horizontally using the C1WrapPanel control. This can be very useful for handling flow of items when the user rotates your app into portrait orientation.
Dock content along the top, left, right and bottom edges of the screen with the C1DockPanel control. Child elements are positioned in the dock panel in the order that they are declared in XAML.
Neatly display child elements in columns and rows with the C1UniformGrid control. By setting the ColumnSpan property you can span columns. Or, span rows by setting the RowSpan property. This resembles the built-in Microsoft Grid. Using C1UniformGrid you can also show or hide an entire column or row.