Exact object dimensions for avatar animations

Does anyone know the exact dimensions of ladders, sittable objects, and other things like that based on the avatar's animations?
Masters of the Art
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GPNMilano wrote:Yes, the avatar is 6 blender units high, 2 wide. Anything over those dimensions will look "right" with ladders, chairs, etc. Though to be technical it isn't necessary, as the object itself is just a visual representation. The region is what controls the animation.