If i do this i wont have to glass over it. Or should i bondo them and glass over it. What way is better, easier, what about wood rot?
I've been trying to digest everything I find on the subject of "wooding". I've found no consensus on the material...Pine boards, plywood, chipboard, etc. My choice where I will use wood is Ash. Morgan Motor Company has been building cars with substantial body wooding for over 100 years...today they still use Ash. That's good enough for me.
For sticking the wood to the body, again no consensus. Based on the testimonial of someone who has tried a few of the popular methods over the years, if I were to do mine today I'd go with West System Six10 adhesive. Easy to use, spans reasonable gaps, and cures to a serious grip.
Another thing I've seen repeated recommendations from folks bonding wood to anything, is to use a woodpecker...
or similar to perforate the wood to allow the adhesive to get a good grip.
Another thing that is consistent is that if you are using a wood product you must encapsulate it with fiberglass or ??? to protect the wood from moisture.
WARNING! The following is something that is the untried product of this warped brain.
Using blocks of wood around the top of the body seems to be the most popular way to go. Depending on how brave I am when the time comes, I may try a variation.
First, instead of using blocks of wood, I want to try blocks of the marine composite material similar to the material I plan on for the floor. The composite material will not require encapsulating to protect from moisture.
Next, I want to use the minimally expanding foam (the stuff used when installing windows) to fill the gaps between the blocks. Once cured, I'd sand off the excess.
An option would be to use thinner blocks...say 3/8" thick...to allow 2 layers with the second layer of blocks spanning the gaps between the first layer of blocks.
I would still use ash to frame the door(s) and door opening(s).
I'm not planning on any upholstery on the sides of the body , so Id either be very careful positioning the blocks so there is a neat exposed edge, or use my router to finish the exposed edge. I plan on using tinted bed liner for the entire inside of the body.