Statement of the problem

The proposal aims to have a mathematical study about the structure of a banca making the measurements exact and making it stronger. As what I had learned from some fishermen, they just do some trial and error process in doing their banca.
This proposal seeks to answer the following question
1. Can there be a formula that can be used as basis in the extension of the banca such as eccentricity and length?
2. What other material can be used to cover the wooden banca to help lessen the absorption of water?
3. What is the correct balance of the weight of the object and the buoyancy force?