Really I wanted to do it twice as long as what is shown but we ran our of board and didn't get to the store to pick some up. It's masonite, cut to size, and painted with chalkboard paint. I didn't round the corners because we are making a frame for it and using it for the next wedding. The small scale folding chairs I picked up at the local antiques store and they were already that color.
It was a hit and served its purpose! It kept so many kids occupied and out of cakes. It's a definite do again thing. Here are some photos.