Tim writes – “After I saw the post – just had to try one. But not just the one sheet of plywood, no, no. Two boats with three sheets of plywood. It’s been a project long in the making and I finally had time this weekend to put together my first Instructable. This project covers the construction of two rowboats that are primarily constructed with three sheets of plywood. The design is not mine. I used a design by Hannu Vartiala, a very generous boat enthusiast who has graciously provided boat plans free of charge on his website. This is a step-by-step documentation and explaination of the project found on that site. I’ve tried to simplify some of Hannu’s steps for laymen like myself. You will need to refer to that page as you read this Instructable. I won’t repeat Hannu’s instructions step by step since this is really his design. I’ll just explain how I did it, what problems I ran in to and how I got around them. I found that some of his documentation was vague and some of his working was confusing. This project tool me about 3 days for the first boat and 2 days for the second. I will also include tips for oar construction, which Hannu did not cover in his project. “ – Link.