Taking a floor plan to a finished building is a herculean feat and what you should be looking for in a sign plan is something that fits with layout of the floor. The layout has to guide the persons using the building in the needed direction and not confuse with out of place signs. The COO, certificate of occupancy, is mandatory before your inspection and you need to know what is needed if there is a change in plans.
Floor plan to sign plan (coming soon)
Give Cardinal a floor plan and you will be returned with a solid sign plan guaranteed to have what you need for your COO and the other rooms accounted for.