Does the gap opening between the door edge and the door frame measure more than 20 cm when in a fully opened position? (see below images)
example 1- Gap is approx 11.5 cm from the edge of the door in a fully opened position where one side of the safety guard is applied to where the the other side of the safety guard is applied on the door frame. Here the door can only open approx 95 degrees.
example 2 - Gap is approx 10.5 cm from where one side of the safety guard will be applied, to the door frame where the other side will be applied when the door is in a fully open position. Here the door can open approx 180 degrees.