The wooden bars are good for adult training regime and children playing. However, you should be careful in taking care of the bars to prevent injuries and accidents, you should always repair and replace broken bars. You should also cut off any pole that is protruding.
We built the same thing. It's worth it. the kids played on it until their knees practically drug the ground.It would be cheaper to buy your own wood and not a kit?you can buy a book that has step to step instructions.