Do you have deep water? In a typical year will you see water fluctuation of more than 2ft.? These are some of the first questions we ask as dock specialist. Once we determine the style of dock that is right for your waterfront, we can move on to designing the layout. Deep water can have advantages as it allows you to spend money on square footage where you can use it, rather than just a walkway. In this instance, the customer chose a gigantic 180 sq.ft. on the water patio.