Usable platform length and width, cave interior dimensions, entrance size and the full assembled footprint usually tell you more about fit than height alone. Overall height describes the tree’s tallest point, but does not tell you whether your cat can stretch out or turn comfortably. The distance between levels matters because it determines the climbing route. Measure protruding hammocks and beds too, especially if the tower will stand beside a door or sofa.
For a corner location, compare the widest assembled dimensions instead of assuming the base defines the whole footprint. Height still matters for room clearance and your cat’s preferred lookout position. However, it should be considered alongside these smaller dimensions. If a listing supplies only a single height measurement, ask for a dimension drawing before making your decision.
For example, a hypothetical 60 cm bed with a 5 cm border on each side leaves only 50 cm in that direction. Record both measurements; the outside figure helps with room planning, while the clear centre helps assess resting space.
For product comparisons alongside this advice, see Ultimate PawHouse and Taj-MeowHall. The details below explain their sizes and uses.
Further reading: rspca.org.uk.
Ultimate PawHouse
Taj-MeowHall
Cat-Cave