CrossFit Style Jump Box Out of Single Sheet of Plywood

This video shows the simplest way to make a plyometric jump box out of a single sheet of plywood and screws. No extra lumber is needed which keeps it light weight and easy to make. There are three different jump heights to choose from with this design and even thought the internal bracing is minimal it is plenty sturdy for users less than 250 pounds.

https://www.youtube.com/watch?time_continue=2&v=nyut5BakqCc