A tub or shower surround kit, system, and method are disclosed. An example system for constructing a tub surround, shower surround, and wall covering includes a plurality of components including at least one panel, at least one edge component, and at least one interconnecting component. The example system also includes a tongue or lip of a first of the plurality of components configured to fit into a groove of a second of the plurality of components. The example system also includes a tongue or lip of the second of the plurality of components to fit into a groove of the first of the plurality of components. Any number of the plurality of components are connected adjacent a desired wall geometry to provide an assembled version of the tub surround, shower surround, and wall covering.