I can help you create four scaled drawings which you can use for your evacuation maps. Since these are evacuation maps, they should fit in a piece of paper which you will post at strategic places.
The drawings will show walls, dividers, doors, windows, stairs, room numbers, room descriptions, ladders, hatches, north arrows, location of fire protection items, assembly areas and other relevant items needed for evacuation.
I will use AutoCad but saved in PDF.