Btw, I’ve been wondering: what do you call a posterboard?
Hey Nufocus,, thanks for the question. It dawns on me that there must be more than a few others here also who wonder what posterboard is.
Basically it is a thin cardboard that is used to make casual posters and temporary signs, but mostly for school students in art classes or fun activities.
It is like a really cheap and non-archival type of illustration board or mat board.
It is very smooth on one side and a little fuzzier on the other, and will take most any kind of mark maker medium.
The usual size is approx 22 x 28 inches, but it varies depending on the maker and where it is sold.
It can be found in most stores like Walmart, Dollar Stores etc etc.
The cost seems to depend on the thickness, size and who is selling it.
The cheapest now is around 30 cents per sheet at the Dollar Stores, and I paid about 50 cents per sheet for the heavyweight type at Walmart that I have pictured.
That works out to be approx 8 or 9 cents per square foot for the cheapest type, and by the time it get slobbered up with gesso and acrylics, I fiqure it will last awhile, especially because I usually paint on both sides (really cheap).
More than you wanted to know, but that’s what you get for asking, ole buddy.