need some ideas on how to ventilate the flooring in a jon boat. i have a floor 1 inch off the bottom in the middle, and built a raised deck on the front.not sure on how to do it.
What is the purpose of your desire for ventilation under the floor? For the front deck you could build some recessed ports on the back wall and mount some lights in them. The recess will keep the light from shining into your eyes whiel working the boat at night.