I'm assuming this is for 10th off-road?
I've raced at a fair few indoor venues over the years. I think you can lay a usable track in something as small as 16m x 8m (the old Oxclose venue for example). That gives you the four 2-metre wide lanes you need to lay any kind of corner and meet up at the end of the lap, it also gives a usable straight. It can get a bit congested though, you can easily do 8-second laps on a layout that size.
Every 2m lanes width or length you can add from that just gets better and better. Something like 24m x 12m feels like a really good track with a lot of variety, roughly what Caldicot run on.
|