Sail boat plans; power boat plans; multi-hulls; speciality boat plans; week-end skiff 12 – row boat for stitch and glue, tack and tape or foam sandwich. plans format:. Lady bug boats is happy to offer our 18 ft commercial skiff plans. due to many requests of people from all areas of the world after viewing our website they insisted. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories..