I have it on a "normal" table, which is also 80 cm deep. For me it fits like this, the monitor is of course at the very back but I feel very comfortable like this.
The depth of the centre of the screen is 26 cm due to the depth of the base. I use this screen on a 1 m deep table and 80 cm would be a bit short from my point of view (maybe it depends on the age of the user).