Creative Cube cages question

This may seem like a silly question, but I am making a cube cage with the cat-proof top and I was wondering - don't the pigs hit the ceiling when they popcorn with the top down? 8o Piglet can go awfully high - I know she *nearly* hit the ceiling several times in her old cage, which was slightly higher than the cubes.
Also, if you are reading this, Teresa, it isn't Keysan that ships to Canada, but Stacks and Stacks. At least someone does!

[CavySpirit]

Oh, Okay, I'll correct that, thanks.

Well, I haven't had a popcorning pig hit 12-14" but I suppose it's possible. You could go to two levels. Check out "Nancy's Photo Gallery" on the Photo page. Completely enclosed two stories. You could go with more of tent angled top. Not sure how, but a little ingenuity might make that work.

Hmm, I don't think my mom will go for that. It's taken since December to convince her to build the cage in the first place. (It is neat though!)
I hope they'll be okay in the single level..

[CavySpirit]

More than likely, it will be fine.