A heads-up! Don't buy one of these!
Cages for African Greys - Quality Discount Cages
Everyone I know who's had one says the bird spends all it's time in the highest part (as most birds do) which is also the smallest part of the cage! Not a good design at all!
Both my guys have one of these Small Split Level House Cage with Divider 42"x26" They both use the whole cage, except for the open top part which is padlocked shut for safety. They both love the folding out resting shelf and wonder all over the top of it when out. Cocos had hers for about 5 years and I have been pleased with it. Mine dont have the splitting ability or the 2 doors though.