This addon meassures the exact height of an avatar using its slightly smaler Collider. The prefab will only display the height of the avatar, to make use of the height data u can get the value from the CVR Var Buffer.
Drag the prefab into your scene.
Upload.
Stand on the Platform.
Hit Messure Avatar Height.
give it a sec.
See the Height displayed in front of you!
on spawn meassure the height of a user and adjust the scale of objects based on it.