They are 4ft by 2ft by 1ft. The melamine came from Menards, the track came was ordered online at rockler.com, and the glass was purchased locally. For now they will house my Irian Jaya Carpet Pythons until my redtail boas get bigger. What do you think of them? Here is a link to rockler for the track. I had a hard time finding this stuff and thought the link may be helpful to others.