What you will need
10 2ft long pieces of decking and 4 1ft long 4x4
How to do this project
HOW TO MAKE IT
Cut your decking board into 10 2ft pieces. The cut your 4x4 into 4 1ft pieces. Then take your 4x4 and and lay it flat then lay your decking board on it. Make sure that the ends of the board and 4x4 are flushed then screw it in. Do the same with all 4 sides. After doing all 4sides. You should have a whole box. Then take another decking board and put it in the middle of the box for a divider. (The divider is optional). Then to make boxer cut decking board into any style with bandsaw or jigsaw.
MAKIN. THE BORDER.
Then take your pieces and line them up with your corners. Then screw in when flushed together with sides. Once you have done that you need to sand it all down for a smooth finish. Hope this project helps you sell many.