That's the reason we had to go with the 600 gallon. The 600 gallon tank (30" tall) barely fit through both doors to make it to its final destination in our basement. In fact, I think there's some streaks of blue on both door jambs still...lol.
This is exactly why I have to go with the 600 as well.....it's going to be such a tight fit that I might have to remove the wood trim from the doorway lol