This is a very tight 2 lane circuit, that doubles back in on itself twice, to give the appearance of a 4 or 6 lane track. Its about as much track as I could possibly fit onto a 10' x 4' (3.3m x 1.2 m) board. I built the board myself as a work bench and track bench, and folds back up flat against the wall when not needed (the legs swing down on hinges). The circuit is very tight in places, as you can see from the layout pic, with 2 double inner curves making up part of one of the tight inner loops. However, its is still reasonably fast, as there are two long, three medium and one short straight sections, and only the one radius one curve 180 degree curve. The remainder are all radius two and three curves. If anyone has any other interesting tracks for small spaces, please send them to me.