96 inches or 8 ft.
Normal size for french doors.
Deduct 10 mm from this value and the measurement will be 131 0 cm.
To get the total width multiply the width of each door by 2 and add 2 inches.
The door used to go inward into the closer since the hallway between the two closets was too skinny for them to go outward.
To correctly determine the size of a rough opening for double or french doors measure the size of each door.
The width had the dimension 124 0 cm in the upper section and 123 0 in the lower.
Fitting with standard door openings stock door heights are 6 feet 8 inches.
Many companies will only sell french doors as pairs.
If you live in an older house or have an unusual door opening there are manufacturers who offer custom sizes.
So if each door measures 30 inches wide the width of the rough opening should be 62 inches.
Now you need to determine the height of the french door with the same procedure and deduct 10 millimetres from the smaller value.
The sizes that your french doors come in will be set by the manufacturer but they are generally between 30 and 72 inches wide per door.
Standard door sizes start at 1 foot 6 inches and are offered at 2 inch increases to 3 feet wide.
And generally are available in 2 inch increments.
Your measured height is 132 0 cm.