How to Make Sandwich Boards for Use As Trials Riding Obstacles

This is a followup to my last video tutorial, "Making a stair set". In this one I show you how to make cool "sandwich boards" of different sizes, for use as obstacles for unicycle trials riding. They are very sturdy and strong and a great way to improve your trials skills! Have a look. they're easy to make too!

You can also watch as I ride the course: http://www.youtube.com/watch?v=VbJIUkCCnFE