A Young Newbie...

[SnakeyJay]

I'd say 3ft tall is way too high. I have a 4ftx2x2 for my female and she uses all the floor space.. I do have 2 strong climbing branches in there and she does use them on occasion but not enough to warrant more height.. As babies they climb often but grow out if it mostly.

While you may want it for artistic flexibility it's just more unused height to heat.

You can see the 2 branches I've got in this pic.

[Kyee]

So more length would be a better idea? And only a 2' height?

[Deva]

Brazilian rainbow's are among the most beautiful snakes I have seen. Welcome!

[SnakeyJay]

I'd say so yes.. For an adult anyway.