How big should be a Bouncy Castle for 20 kids?

[BunnyLane]

Hi all,

I'm throwing a birthday party for my daughter and we're expecting about 20 kids. How big do you think a bouncy castle should be?

For that many I'd go for an inflatable assault course. They do "laps" so there is no need to worry about how many are on it!

Er - it's more about the "authority" of the adults manning it. You can't have that many on it at once.

Thanks for the tips. I'm off to google assault course :)