You need about 4-5 sheets of plywood to build it. about 10mm for the bottom and 6.5 mm for the sides. update 11th january 2018: today i have sold this boat to a local dive center.. Build the ribs using the 2 by 4 lumber. cut the gussets to strengthen the rib joints from 1/4-inch marine plywood. similar to the ribs on the human body, the ribs secure the rest of the boat's structure.. Seriously, if you think it's a good idea to build a boat out of plywood you are probably wrong, but in any case you should obtain plans and instruction from a qualified boat builder and follow them to the letter. also, when you are on the water be sure to wear a personal floatation device..
Plywood needs to be well sealed to prevent damage by water intrusion, and there is an excellent product, new since the days over 50 years ago when i built my little boat, called clear penetrating epoxy sealer which is excellent for preparing bare wood for the marine environment.. "how to build a plywood boat riva boat building plans,boats lesson plans kindergarten bolger boat design plans,rc boat plans dxf boat building school houston." "plans and information about building the chalmette microskiff.". The four half sheets of 8' plywood are used to make 12 boat panels, then these 12 panels are put together in matching pairs with butt blocks or scarf joints to make up the total 6 panels or 3 per side..
