This is the north region, with a red background, 20px padding and a 5px blue border-bottom.
This region can't be collapsed.
This is the west region, with a green background, 20px padding and a 30px orange border-right.

This region can be collapsed.
This is the east region, with a yellow background, 10px padding and a 2px black border.

This region can be collapsed.
This is the south region, with an orange background, 5px padding and a 10px red border-top.
This region can't be collapsed.
This is the center region, with a gray background, 20px padding and a 10px purple border.

The default setting adds a 5px spacing between every region but you can tweat it as you want.

To find out how to use FBBorderLayout for your purpose just look at the source code.