Ninja Strong

J.B Builders is the only builder of custom home ninja courses proudly providing high quality ninja obstacles and rock walls to the Northern Chicago suburbs since 2019. We have been involved with the ninja community for several years now. We have children that compete with the local and national ninja leagues so our ability to truly connect with our customers, and provide the most personalized course for them or their children. This comes from a personal and family passion for the sport. To learn more, simply browse through our site.