So you would like to take your rock climbing and ninja warrior training to the next level? This CrossFit rack is worth a look. It can be assembled fast and lets you train in a small space. It stands 2.3m tall by 1m wide with 1m depth. This climbing trainer has a birch plywood construction.
You can use this ninja warrior rack to strengthen your grip, arms, and all the muscles you need to climb or master obstacle courses. The above video shows what you get.