I saw a video of someone who knew what they were doing using a pair of similar clips to create a storage shelf . on YouTube so I bought two of these to help me build a storage rack in my garage and they worked great. I'm a regular guy (not a carpenter) and no doubt they saved me a few hours of work and helped me build a very solid storage rack. This proved to be a very profitable purchase and product in terms of cost and time. light five stars.