I recently bought a leaf loader and this is the first box i am building. I was wondering if i should use outdoor .5 in or outdoor .75 inch plywood? Also any ideas for the top? I was thinking of getting a mesh tarp and stringing it over the top of the box and use some ferring strips to screw the tarp to the sides of the leaf box. Is there any tips you would give out? Thanks in advance for your help.