I'm designing a standy that is 7' wide outside to outside. Plywood walls.
I live in canada and it will be stored outside, building code snow loads in my area are 56 psf. What should I be using for ribs spanning that gap? I worry that 2x2s will be too weak, particularly because I have a 4'8" long flat section on the roof.
So to sum up, what ribs material and size, and also spacing between ribs, particularly at the top.
I'd like to keep my roof thickness to a minimum, 3" max if I can.