Noc3 wrote:I may just double up the walls between/under the shelves, I don't think I want to just butt joint glue because that would put sheer forces on the foam walls and if they give out the shelves could take the canvass off with them.
Dados would be nice but I doubt I could line everything up all at once while trying to raise/glue the walls.
If not dado's, experiment with the window screen glued on the bottom side, think you will be amazed at how much stronger that makes the foam.
Do you have a heater? I am good down to about 17 degrees F w/o a heater in mine, but I am in Colorado where it is drier.
I grew up in Virginia, the coldest night I ever spent camping was in the mountains of Virginia, along the Tye river in mid October. Temps in mid 20's but with higher humidity levels, the cold cut through me like a knife (was in a tent, not a foamie).
In Colorado in the foamie. I can do temps down around zero, if I use a 12V heater blanket to help me warm up under the blankets. I turn the 12V blanket off after about 20 mins and am good the rest of the night.
Good Luck with your shelves...keep us posted :-)