If you go on to RCCL's website and look at the deck plan the balcony size is pretty accurate. You'll see that the end cabins have more of a wedge shaped balcony - deeper but not any wider? and it changes as you go across the hump. Apparently those diagrams are pretty accurate.
We were in #7608 on the "Radiance" and were charged as an "E1" because we had a curved but functional balcony. To our left, in #7606, the balcony had room to stand comfortably! Funny how they rectify this as you move to the upper decks.
what do yo mean rectify? We will be on the hump & were told our room had a larger balcony...It looked OK when we saw the ship in port but from the ground who knows???Hope it is at least regular size--Got stuck with a pie shaped mini last trip on Summit--just next to a protruding suite window!
Followed 'sprockets' suggestion re: RCLs website (have seen it before) but with this recommendation paid more attention. The balcony on cabin 7608 & the one above 8602 are probably close to 60 sq ft. if as sprocket says, they are accurate in the depiction of same, 'cause the ordinary balconies are 41 sq ft and they are at least a third bigger. I think I understand the 'rectify' remark Robbie made too - the levels 7 & 8 are the same but the balconies above (9 - 10 )are bigger - they are D1 & higher category cabins and also bigger than the E categories.. Hope this helps, I know it has answered my question..Happy cruisin' all! :-)