Elevator boat lifts are "side mounted" to a seawall, dock or piling with the most common being mounted to a seawall. These boat lifts most resemble a forklift, lifting your boat out of the water in a very similar way. These boat lift kits start at a rating of 1500-lbs and go up to 16,000-lbs. Just like the 4 point lifts, the units come in either galvanized or aluminum.