I started with a 4x8 sheet of Masonite and painted it with several coats of chalkboard paint. Then Jeff screwed it directly to the wall.
For the frame, I simply stained some trim without bothering to seal it and we nailed it right over the chalkboard.
When we moved, we just left it behind so now I need to make another one.
It was very cheap and super easy.
Being a homeschool mom, you might think I used it a lot for school. Nope. It's more fun to use as decoration than for education!
Go visit Nester for more links to great chalkboards!
And Twice Remembered at: