UPDATE - screen is taken and picked up. Donated it to a non-profit.
I built my outdoor theater two years ago. Now, I'm moving abroad. Can't bring it, as much as I'd like to.
The screen is 196" (14.2x8 feet, 16:9 aspect). The screen material is plywood, and the frame is pressure treated wood. I spared no effort building it -- the plywood is properly stained and primed (for weather-sustainability) and the front (projection surface) is flat white paint.
I've kept it covered by a tarp when not in use, so it's in excellent condition.
The screen comes apart into four 4x8' pieces, but once put together again, the seams will need to be re-caulked and the surface repainted.
As stated above, screen is taken already. This post is here for archival purposes
Have an awesome day!