In this episode of the Art of Boat Building the last plank is installed on the Haven 12 1/2. This shear strake plank is referred to as the Whiskey Plank. The Whiskey Plank is the final plank required to complete the outer shell of a wooden hull. This is considered to be a major milestone in the construction of a wooden yacht. Before the Whiskey Plank could be attached however, it needed to be spiled. Spiling is the art of determining the precise shape that a plank needs to be to fit into a particular space. A quick review of the carvel planking process from plank preparation, re-sawing, slip boarding, cutting a rolling bevel and backing out a plank is briefly discussed.