I am planning to make a fitness jump platform/board for a friend. Basically, it's a height platform to jump onto. The platform will be 20" x 24" with a height of 30" perhaps 1/2 or 3/4 thick wood. I was thinking of making the base just a bit wider to establish that tapered look. It'll be a simple box with an extra board in the center for strength then cutting a hole on each side for handles. With this type of construction, I didn't want to use heavy wood, yet I don't want to use cheap stuff which may break over time, if not soon. Any recommendations to what type of wood to use. Any other recommendations also appreciated.
Thank you