Height Of The Sprouse Twins!

They're 5"11 & 6" now! Woah! They must've had a really late growth spurt. How tall were they on The Suite Life Of Zack & Cody? They must've been between 12yrs - 15yrs whilst on that show, and then 15yrs - 18yrs on The Suite Life On Deck, where they still looked pretty small (Definitely nowhere near 6ft!) - I can't believe it!