This bracket/rail works if you mount it flat on a deck as the bracket is flush with rail and surface. The bracket needs to be replaced with one that allows for the depth of side of actual spa. There_ a 1.75 lip over the spa side so a flush mount bracket on the spa side doesn_ work. It feels sturdy enough but we had to return it cuz it not mountable on the side of a spa. Seller was good to deal with the return which was a PITA- the box was destroyed in shipping so I had to construct a box to fit it_ all one piece at right angles to itself.