I would be interested to see what others say on this one too - I have one big male neuter coonie and for him, the trees I have bought for the cats (mostly meezers) seem to be too small and sway precariously when he leaps up to the top of them - he can barely fit - no lets be honest
he overflows from the platforms, hammocks etc and tends not to stay in them but simply uses them as transition points.
My own humble opinion is that one would have to make a bespoke cat tree for Maine Coons.
One would of course need a large house with large rooms ...
