New Cage?

Ok i have a male bp, he is curently 2 feet, and 240 or so grams, last time i wieghed him was 3 weeks ago and he was 236. My question is should i upgrade from the 10 gallon i have now to a 20 gallon. I like the look of the glass as opposed to the rubermaid bin, but im open to any sugestions.

Thanks
Keith

He should be good in the 10 gallon for a bit more time as long as the temps are good and he sheds, eats, etc as normal.