What is the maximum opening on a balcony from the ground. up to the begining of the metal on a balcony?

Question:

Answers:
If you mean clearance from ground to ceiling Min is 7',3".
Maximum high is up to columns under balcony .And always
is level by second floor flooring.Standard high in most houses is from 8',6".Which if you add Ceiling joists wide to it
will be your floor level line.