Yeah, I have LOTS of space at my place. We could've built it to be 150' X 100', but when you're doing ALL of the work by hand in the blazing sun all summer long, 100' X 50' is big enough! It took us about 2-3 months of HARD work to get the thing built using lawn mowers, shovels, wheelbarrows, etc... This summer we're going to finish it off and that'll probably take another month of work, but it'll be better than most sanctioned tracks then. You could maybe try 75' X 40' or something. Just take a look at how big 1/10ths are, know that you need to have at least 8' wide lanes, prefferably 10', and then walk around your possible track area and see what you can make happen.