The present application relates to a wall panel for recreational vehicles. In one representative embodiment, a wall panel for a recreational vehicle comprises a main body defining at least one pre-formed panel opening, and an inwardly extending peripheral flange located along a perimeter of the at least one pre-formed panel opening. The wall panel is configured to be mounted onto a structural wall of the recreational vehicle such that the peripheral flange covers an inner surface of a corresponding opening defined in the structural wall.