Clinker built (also known as lapstrake) is a method of boat building where the edges of hull planks overlap, called a "land" or "landing." in craft of any. Clinker or lapstrake boat construction is an ancient method of constructing ship hulls that is still used today. find out more about this unique construction method. Carvel built or carvel planking is a method of boat building where hull planks are fastened edge to edge, gaining support from the frame and forming a smooth surface..