Looks like the MDF is going to be too heavy for my need. The closed cell foam board mentioned, what is that exactly and where is it available?
I was thinking yesterday about the white synthetic board that people are using now for small campaign signs, where they slide a metal support up into it, between the front and back layer, and push the metal legs into the ground. It's stable, lightweight, and shouldn't be expensive. If it's available in thicker sheets it would be better, maybe 3/8". Anybody know what it's called? Probably available through a sign shop.
SRH
