Many people ask us if they need to worry about waves pushing their pier over. Waves have very little horizontal pushing power. What little pushing power they do have is likely to be in the direction toward shore. So if they do rise up and hit a pier they don’t push sideways enough to push a pier over. Waves move mostly up and down so the bigger problem is whether they get big enough to be higher than the top of the pier. If they do, they can push up on the deck panels and eventually push them off the frame. When we sell you a pier, we ask you questions about your location to determine whether that is likely to happen. If it is, we recommend panel clips, which lock the panels to the pier fame. The prudent approach, the one we will recommend, is to order the legs so that the pier remains high enough above the water to avoid the need for panel locks in the first place. On larger lakes, that height-above-water is a little harder to predict (and, for the owner, perhaps inconvenient) so we then recommend the panel locks. Sometimes only experience over the years or queries to the neighbors will give a reliable and safe height-above-water for your pier. Waves sometimes look a lot higher than they actually are.